Provided by: calibre_3.21.0+dfsg-1build1_all bug

NAME

       ebook-convert - ebook-convert

          ebook-convert input_file output_file [options]

       Convert an e-book from one format to another.

       input_file is the input and output_file is the output. Both must be specified as the first
       two arguments to the command.

       The output e-book format is guessed from the file extension  of  output_file.  output_file
       can  also  be  of  the special format .EXT where EXT is the output file extension. In this
       case, the name of the output file is derived from the name of the input  file.  Note  that
       the filenames must not start with a hyphen. Finally, if output_file has no extension, then
       it is treated as a directory and an "open  e-book"  (OEB)  consisting  of  HTML  files  is
       written  to that directory. These files are the files that would normally have been passed
       to the output plugin.

       After specifying the input and output file you can customize the conversion by  specifying
       various  options.  The available options depend on the input and output file types. To get
       help on them specify the input and output file and then use the -h option.

       For full documentation of the conversion system see conversion

       Whenever you pass arguments to  ebook-convert  that  have  spaces  in  them,  enclose  the
       arguments in quotation marks. For example: "/some path/with spaces"

       The  options  and  default  values  for the options change depending on both the input and
       output formats, so you should always check with:

          ebook-convert myfile.input_format myfile.output_format -h

       Below are the options that are common to all conversion, followed by the options  specific
       to every input and output format.

       • Look and FeelHeuristic ProcessingSearch and ReplaceStructure DetectionTable of ContentsMetadataDebugAZW4 Input OptionsCHM Input OptionsComic Input OptionsDJVU Input OptionsDOCX Input OptionsEPUB Input OptionsFB2 Input OptionsHTLZ Input OptionsHTML Input OptionsLIT Input OptionsLRF Input OptionsMOBI Input OptionsODT Input OptionsPDB Input OptionsPDF Input OptionsPML Input OptionsRB Input OptionsRTF Input OptionsRecipe Input OptionsSNB Input OptionsTCR Input OptionsTXT Input OptionsAZW3 Output OptionsDOCX Output OptionsEPUB Output OptionsFB2 Output OptionsHTML Output OptionsHTMLZ Output OptionsLIT Output OptionsLRF Output OptionsMOBI Output OptionsOEB Output OptionsPDB Output OptionsPDF Output OptionsPML Output OptionsRB Output OptionsRTF Output OptionsSNB Output OptionsTCR Output OptionsTXT Output OptionsTXTZ Output Options

       --help, -h
              show this help message and exit

       --input-profile
              Specify   the  input  profile.  The  input  profile  gives  the  conversion  system
              information on how to interpret various information  in  the  input  document.  For
              example   resolution   dependent   lengths   (i.e.   lengths  in  pixels).  Choices
              are:cybookg3,  cybook_opus,  default,  hanlinv3,  hanlinv5,   illiad,   irexdr1000,
              irexdr800, kindle, msreader, mobipocket, nook, sony, sony300, sony900

       --list-recipes
              List  builtin  recipe  names.  You  can create an e-book from a builtin recipe like
              this: ebook-convert "Recipe Name.recipe" output.epub

       --output-profile
              Specify the output profile. The output profile tells the conversion system  how  to
              optimize  the created document for the specified device (such as by resizing images
              for the device screen size). In some cases,  an  output  profile  can  be  used  to
              optimize  the output for a particular device, but this is rarely necessary. Choices
              are:cybookg3,     cybook_opus,     default,     generic_eink,      generic_eink_hd,
              generic_eink_large, hanlinv3, hanlinv5, illiad, ipad, ipad3, irexdr1000, irexdr800,
              jetbook5, kindle,  kindle_dx,  kindle_fire,  kindle_oasis,  kindle_pw,  kindle_pw3,
              kindle_voyage,   kobo,   msreader,   mobipocket,  nook,  nook_color,  nook_hd_plus,
              pocketbook_900, pocketbook_pro_912, galaxy, sony, sony300, sony900, sony-landscape,
              sonyt3, tablet

       --version
              show program's version number and exit

LOOK AND FEEL

       Options to control the look and feel of the output

       --asciiize
              Transliterate  unicode characters to an ASCII representation. Use with care because
              this will replace unicode characters with  ASCII.  For  instance  it  will  replace
              "Михаил  Горбачёв"  with "Mikhail Gorbachiov". Also, note that in cases where there
              are multiple representations of a  character  (characters  shared  by  Chinese  and
              Japanese  for  instance)  the representation based on the current calibre interface
              language will be used.

       --base-font-size
              The base font size in pts. All font sizes in the produced  book  will  be  rescaled
              based  on this size. By choosing a larger size you can make the fonts in the output
              bigger and vice versa. By default, the base font size is chosen based on the output
              profile you chose.

       --change-justification
              Change  text  justification.  A  value of "left" converts all justified text in the
              source to left aligned (i.e. unjustified) text. A value of "justify"  converts  all
              unjustified  text to justified. A value of "original" (the default) does not change
              justification in the source file.  Note  that  only  some  output  formats  support
              justification.

       --disable-font-rescaling
              Disable all rescaling of font sizes.

       --embed-all-fonts
              Embed every font that is referenced in the input document but not already embedded.
              This will search your system for the fonts, and if found, they  will  be  embedded.
              Embedding  will  only  work  if  the format you are converting to supports embedded
              fonts, such as EPUB, AZW3, DOCX or PDF. Please ensure  that  you  have  the  proper
              license for embedding the fonts used in this document.

       --embed-font-family
              Embed  the specified font family into the book. This specifies the "base" font used
              for the book. If the input document specifies its own fonts, they may override this
              base font. You can use the filter style information option to remove fonts from the
              input document. Note that font embedding  only  works  with  some  output  formats,
              principally EPUB, AZW3 and DOCX.

       --expand-css
              By  default, calibre will use the shorthand form for various CSS properties such as
              margin, padding, border, etc. This option will cause it to use  the  full  expanded
              form  instead. Note that CSS is always expanded when generating EPUB files with the
              output profile set to one of the Nook profiles as the Nook cannot handle  shorthand
              CSS.

       --extra-css
              Either  the  path  to a CSS stylesheet or raw CSS. This CSS will be appended to the
              style rules from the source file, so it can be used to override those rules.

       --filter-css
              A comma separated list of CSS properties that will be removed from  all  CSS  style
              rules.  This  is  useful if the presence of some style information prevents it from
              being       overridden       on       your       device.        For        example:
              font-family,color,margin-left,margin-right

       --font-size-mapping
              Mapping  from  CSS  font  names  to  font  sizes  in  pts.  An  example  setting is
              12,12,14,16,18,20,22,24. These are the mappings for the sizes xx-small to xx-large,
              with  the  final size being for huge fonts. The font rescaling algorithm uses these
              sizes to intelligently rescale fonts. The default is to use a mapping based on  the
              output profile you chose.

       --insert-blank-line
              Insert  a  blank line between paragraphs. Will not work if the source file does not
              use paragraphs (<p> or <div> tags).

       --insert-blank-line-size
              Set the height of the inserted blank lines (in em). The height of the lines between
              paragraphs will be twice the value set here.

       --keep-ligatures
              Preserve ligatures present in the input document. A ligature is a special rendering
              of a pair of characters like ff, fi, fl et cetera. Most readers do not have support
              for  ligatures in their default fonts, so they are unlikely to render correctly. By
              default, calibre will turn  a  ligature  into  the  corresponding  pair  of  normal
              characters. This option will preserve them instead.

       --line-height
              The  line  height  in pts. Controls spacing between consecutive lines of text. Only
              applies to elements that do not define their own line height. In  most  cases,  the
              minimum  line  height option is more useful. By default no line height manipulation
              is performed.

       --linearize-tables
              Some badly designed documents use tables to control the layout of text on the page.
              When  converted  these  documents  often have text that runs off the page and other
              artifacts. This option will extract the content from the tables and present it in a
              linear fashion.

       --margin-bottom
              Set  the  bottom margin in pts. Default is 5.0. Setting this to less than zero will
              cause no margin to be set (the margin setting in  the  original  document  will  be
              preserved).  Note: Page oriented formats such as PDF and DOCX have their own margin
              settings that take precedence.

       --margin-left
              Set the left margin in pts. Default is 5.0. Setting this to  less  than  zero  will
              cause  no  margin  to  be  set (the margin setting in the original document will be
              preserved). Note: Page oriented formats such as PDF and DOCX have their own  margin
              settings that take precedence.

       --margin-right
              Set  the  right  margin in pts. Default is 5.0. Setting this to less than zero will
              cause no margin to be set (the margin setting in  the  original  document  will  be
              preserved).  Note: Page oriented formats such as PDF and DOCX have their own margin
              settings that take precedence.

       --margin-top
              Set the top margin in pts. Default is 5.0. Setting this  to  less  than  zero  will
              cause  no  margin  to  be  set (the margin setting in the original document will be
              preserved). Note: Page oriented formats such as PDF and DOCX have their own  margin
              settings that take precedence.

       --minimum-line-height
              The  minimum  line  height,  as a percentage of the element's calculated font size.
              calibre will ensure that every element has a line height of at least this  setting,
              irrespective  of what the input document specifies. Set to zero to disable. Default
              is 120%. Use this setting in preference to the direct  line  height  specification,
              unless  you  know  what you are doing. For example, you can achieve "double spaced"
              text by setting this to 240.

       --remove-paragraph-spacing
              Remove spacing between paragraphs. Also sets an  indent  on  paragraphs  of  1.5em.
              Spacing  removal  will  not work if the source file does not use paragraphs (<p> or
              <div> tags).

       --remove-paragraph-spacing-indent-size
              When calibre removes blank  lines  between  paragraphs,  it  automatically  sets  a
              paragraph  indent,  to  ensure  that  paragraphs  can be easily distinguished. This
              option controls the width of that indent (in em). If you set this  value  negative,
              then  the indent specified in the input document is used, that is, calibre does not
              change the indentation.

       --smarten-punctuation
              Convert  plain  quotes,  dashes  and  ellipsis  to  their  typographically  correct
              equivalents. For details, see https://daringfireball.net/projects/smartypants

       --subset-embedded-fonts
              Subset  all  embedded  fonts.  Every  embedded  font is reduced to contain only the
              glyphs used in this document. This decreases the size of the font files. Useful  if
              you are embedding a particularly large font with lots of unused glyphs.

       --transform-css-rules
              Path  to  a  file  containing  rules  to transform the CSS styles in this book. The
              easiest way to create such a file is to use the wizard for creating  rules  in  the
              calibre  GUI.  Access  it  in  the  "Look  & feel->Transform styles" section of the
              conversion dialog. Once you create the rules, you can use the  "Export"  button  to
              save them to a file.

       --unsmarten-punctuation
              Convert fancy quotes, dashes and ellipsis to their plain equivalents.

HEURISTIC PROCESSING

       Modify  the  document  text  and structure using common patterns. Disabled by default. Use
       --enable-heuristics to enable.  Individual actions can be disabled  with  the  --disable-*
       options.

       --disable-dehyphenate
              Analyze hyphenated words throughout the document.  The document itself is used as a
              dictionary to determine whether hyphens should be retained or removed.

       --disable-delete-blank-paragraphs
              Remove empty paragraphs from the document  when  they  exist  between  every  other
              paragraph

       --disable-fix-indents
              Turn  indentation  created  from  multiple  non-breaking  space  entities  into CSS
              indents.

       --disable-format-scene-breaks
              Left aligned scene break markers are center aligned. Replace soft scene breaks that
              use multiple blank lines with horizontal rules.

       --disable-italicize-common-cases
              Look for common words and patterns that denote italics and italicize them.

       --disable-markup-chapter-headings
              Detect  unformatted  chapter  headings  and  sub headings. Change them to h2 and h3
              tags.  This setting will not create a TOC, but can  be  used  in  conjunction  with
              structure detection to create one.

       --disable-renumber-headings
              Looks  for  occurrences of sequential <h1> or <h2> tags. The tags are renumbered to
              prevent splitting in the middle of chapter headings.

       --disable-unwrap-lines
              Unwrap lines using punctuation and other formatting clues.

       --enable-heuristics
              Enable heuristic processing. This option must be set for any  heuristic  processing
              to take place.

       --html-unwrap-factor
              Scale  used  to  determine  the  length  at which a line should be unwrapped. Valid
              values are a decimal between 0 and 1. The default is 0.4,  just  below  the  median
              line  length.   If  only  a few lines in the document require unwrapping this value
              should be reduced

       --replace-scene-breaks
              Replace scene breaks with the specified text. By default, the text from  the  input
              document is used.

SEARCH AND REPLACE

       Modify the document text and structure using user defined patterns.

       --search-replace
              Path  to  a  file  containing search and replace regular expressions. The file must
              contain alternating lines of regular expression  followed  by  replacement  pattern
              (which  can  be  an empty line). The regular expression must be in the Python regex
              syntax and the file must be UTF-8 encoded.

       --sr1-replace
              Replacement to replace the text found with sr1-search.

       --sr1-search
              Search pattern (regular expression) to be replaced with sr1-replace.

       --sr2-replace
              Replacement to replace the text found with sr2-search.

       --sr2-search
              Search pattern (regular expression) to be replaced with sr2-replace.

       --sr3-replace
              Replacement to replace the text found with sr3-search.

       --sr3-search
              Search pattern (regular expression) to be replaced with sr3-replace.

STRUCTURE DETECTION

       Control auto-detection of document structure.

       --chapter
              An XPath expression to detect chapter titles. The default is to  consider  <h1>  or
              <h2>  tags  that  contain  the  words  "chapter",  "book",  "section",  "prologue",
              "epilogue"  or  "part"  as  chapter  titles  as  well  as  any   tags   that   have
              class="chapter".  The  expression  used  must  evaluate  to  a list of elements. To
              disable chapter detection, use the expression "/". See the XPath  Tutorial  in  the
              calibre User Manual for further help on using this feature.

       --chapter-mark
              Specify  how  to  mark  detected  chapters. A value of "pagebreak" will insert page
              breaks before chapters. A value of "rule" will insert a  line  before  chapters.  A
              value  of  "none"  will disable chapter marking and a value of "both" will use both
              page breaks and lines to mark chapters.

       --disable-remove-fake-margins
              Some documents specify page margins by specifying a left and right margin  on  each
              individual  paragraph.  calibre  will  try  to  detect  and  remove  these margins.
              Sometimes, this can cause the removal of margins that should not have been removed.
              In this case you can disable the removal.

       --insert-metadata
              Insert  the  book  metadata at the start of the book. This is useful if your e-book
              reader does not support displaying/searching metadata directly.

       --page-breaks-before
              An XPath expression. Page breaks are inserted before  the  specified  elements.  To
              disable use the expression: /

       --prefer-metadata-cover
              Use the cover detected from the source file in preference to the specified cover.

       --remove-first-image
              Remove  the  first  image from the input e-book. Useful if the input document has a
              cover image that is not identified as a cover. In this case, if you set a cover  in
              calibre,  the  output  document  will  end  up  with two cover images if you do not
              specify this option.

       --start-reading-at
              An XPath expression to detect the location  in  the  document  at  which  to  start
              reading.  Some  e-book  reading  programs  (most  prominently  the Kindle) use this
              location as the position at which to open the book. See the XPath tutorial  in  the
              calibre User Manual for further help using this feature.

TABLE OF CONTENTS

       Control  the  automatic  generation of a Table of Contents. By default, if the source file
       has a Table of Contents, it will be used in preference to the automatically generated one.

       --duplicate-links-in-toc
              When creating a TOC from links in the input document, allow duplicate entries, i.e.
              allow  more  than  one  entry  with  the  same  text, provided that they point to a
              different location.

       --level1-toc
              XPath expression that specifies all tags that should  be  added  to  the  Table  of
              Contents  at  level one. If this is specified, it takes precedence over other forms
              of auto-detection. See the XPath Tutorial in the calibre User Manual for examples.

       --level2-toc
              XPath expression that specifies all tags that should  be  added  to  the  Table  of
              Contents  at level two. Each entry is added under the previous level one entry. See
              the XPath Tutorial in the calibre User Manual for examples.

       --level3-toc
              XPath expression that specifies all tags that should  be  added  to  the  Table  of
              Contents  at  level  three. Each entry is added under the previous level two entry.
              See the XPath Tutorial in the calibre User Manual for examples.

       --max-toc-links
              Maximum number of links to insert into the TOC. Set to 0 to  disable.  Default  is:
              50.  Links  are only added to the TOC if less than the threshold number of chapters
              were detected.

       --no-chapters-in-toc
              Don't add auto-detected chapters to the Table of Contents.

       --toc-filter
              Remove entries from the Table of Contents whose titles match the specified  regular
              expression. Matching entries and all their children are removed.

       --toc-threshold
              If  fewer  than  this  number  of chapters is detected, then links are added to the
              Table of Contents. Default: 6

       --use-auto-toc
              Normally, if the source file already has  a  Table  of  Contents,  it  is  used  in
              preference  to  the auto-generated one. With this option, the auto-generated one is
              always used.

METADATA

       Options to set metadata in the output

       --author-sort
              String to be used when sorting by author.

       --authors
              Set the authors. Multiple authors should be separated by ampersands.

       --book-producer
              Set the book producer.

       --comments
              Set the e-book description.

       --cover
              Set the cover to the specified file or URL

       --isbn Set the ISBN of the book.

       --language
              Set the language.

       --pubdate
              Set the publication date (assumed to be in the local timezone, unless the  timezone
              is explicitly specified)

       --publisher
              Set the e-book publisher.

       --rating
              Set the rating. Should be a number between 1 and 5.

       --read-metadata-from-opf, --from-opf, -m
              Read  metadata  from  the  specified  OPF  file.  Metadata read from this file will
              override any metadata in the source file.

       --series
              Set the series this e-book belongs to.

       --series-index
              Set the index of the book in this series.

       --tags Set the tags for the book. Should be a comma separated list.

       --timestamp
              Set the book timestamp (no longer used anywhere)

       --title
              Set the title.

       --title-sort
              The version of the title to be used for sorting.

DEBUG

       Options to help with debugging the conversion

       --debug-pipeline, -d
              Save the output from different stages of the conversion pipeline to  the  specified
              directory.  Useful if you are unsure at which stage of the conversion process a bug
              is occurring.

       --verbose, -v
              Level of verbosity. Specify multiple times for  greater  verbosity.  Specifying  it
              twice  will  result  in  full verbosity, once medium verbosity and zero times least
              verbosity.

AZW4 INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

CHM INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

COMIC INPUT OPTIONS

       --colors
              Reduce the number of colors used in the image. This works only if  you  choose  the
              PNG  output  format.  It  is  useful to reduce file sizes. Set to zero to turn off.
              Maximum value is 256. It is off by default.

       --comic-image-size
              Specify the  image  size  as  widthxheight  pixels.  Normally,  an  image  size  is
              automatically calculated from the output profile, this option overrides it.

       --despeckle
              Enable Despeckle. Reduces speckle noise. May greatly increase processing time.

       --disable-trim
              Disable  trimming of comic pages. For some comics, trimming might remove content as
              well as borders.

       --dont-add-comic-pages-to-toc
              When converting a CBC do not add links to each page to  the  TOC.  Note  this  only
              applies if the TOC has more than one section

       --dont-grayscale
              Do not convert the image to grayscale (black and white)

       --dont-normalize
              Disable normalize (improve contrast) color range for pictures. Default: False

       --dont-sharpen
              Disable sharpening.

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

       --keep-aspect-ratio
              Maintain picture aspect ratio. Default is to fill the screen.

       --landscape
              Don't split landscape images into two portrait images

       --no-process
              Apply no processing to the image

       --no-sort
              Don't sort the files found in the comic alphabetically by  name.  Instead  use  the
              order they were added to the comic.

       --output-format
              The  format  that images in the created e-book are converted to. You can experiment
              to see which format gives you optimal size and look on your device.

       --right2left
              Used for right-to-left publications like manga. Causes landscape pages to be  split
              into portrait pages from right to left.

       --wide Keep aspect ratio and scale image using screen height as image width for viewing in
              landscape mode.

DJVU INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

DOCX INPUT OPTIONS

       --docx-inline-subsup
              Render superscripts and subscripts so that they do not affect the line height.

       --docx-no-cover
              Normally,  if a large image is present at the start of the document that looks like
              a cover, it will be removed from the document and used as  the  cover  for  created
              e-book. This option turns off that behavior.

       --docx-no-pagebreaks-between-notes
              Do not insert a page break after every endnote.

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

EPUB INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

FB2 INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

       --no-inline-fb2-toc
              Do not insert a Table of Contents at the beginning of the book.

HTLZ INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

HTML INPUT OPTIONS

       --breadth-first
              Traverse  links  in  HTML  files  breadth first. Normally, they are traversed depth
              first.

       --dont-package
              Normally this input plugin re-arranges all the input files into a  standard  folder
              hierarchy.  Only use this option if you know what you are doing as it can result in
              various nasty side effects in the rest of the conversion pipeline.

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

       --max-levels
              Maximum   levels  of  recursion  when  following  links  in  HTML  files.  Must  be
              non-negative. 0 implies that no links in the root HTML file are  followed.  Default
              is 5.

LIT INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

LRF INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

MOBI INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

ODT INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

PDB INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

PDF INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

       --new-pdf-engine
              Use the new PDF conversion engine. Currently not operational.

       --no-images
              Do not extract images from the document

       --unwrap-factor
              Scale  used  to  determine  the  length  at which a line should be unwrapped. Valid
              values are a decimal between 0 and 1. The default is 0.45, just  below  the  median
              line length.

PML INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

RB INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

RTF INPUT OPTIONS

       --ignore-wmf
              Ignore WMF images instead of replacing them with a placeholder image.

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

RECIPE INPUT OPTIONS

       --dont-download-recipe
              Do not download latest version of builtin recipes from the calibre server

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

       --lrf  Optimize fetching for subsequent conversion to LRF.

       --password
              Password for sites that require a login to access content.

       --test Useful  for  recipe development. Forces max_articles_per_feed to 2 and downloads at
              most 2 feeds. You can change the number of feeds and articles by supplying optional
              arguments. For example: --test 3 1 will download at most 3 feeds and only 1 article
              per feed.

       --username
              Username for sites that require a login to access content.

SNB INPUT OPTIONS

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

TCR INPUT OPTIONS

       --input-encoding
              Specify  the  character  encoding  of  the  input document. If set this option will
              override any encoding declared by the  document  itself.  Particularly  useful  for
              documents  that  do  not  declare  an  encoding  or  that  have  erroneous encoding
              declarations.

TXT INPUT OPTIONS

       --formatting-type
              Formatting used within the document. * auto: Automatically decide which  formatting
              processor  to use. * plain: Do not process the document formatting. Everything is a
              paragraph and no styling is applied.  *  heuristic:  Process  using  heuristics  to
              determine  formatting  such  as  chapter  headings  and  italic  text.  *  textile:
              Processing  using  textile  formatting.  *  markdown:  Processing  using   markdown
              formatting.        To        learn        more       about       markdown       see
              https://daringfireball.net/projects/markdown/

       --input-encoding
              Specify the character encoding of the input  document.  If  set  this  option  will
              override  any  encoding  declared  by  the document itself. Particularly useful for
              documents that  do  not  declare  an  encoding  or  that  have  erroneous  encoding
              declarations.

       --markdown-extensions
              Enable extensions to markdown syntax. Extensions are formatting that is not part of
              the standard markdown format. The extensions enabled by default: footnotes, tables,
              toc.      To      learn      more      about      markdown      extensions,     see
              https://pythonhosted.org/Markdown/extensions/index.html  This  should  be  a  comma
              separated list of extensions to enable: * abbr: Abbreviations * admonition: Support
              admonitions * attr_list: Add attribute to HTML tags * def_list: Definition lists  *
              extra:  Enables  various  common  extensions  * fenced_code: Alternative code block
              syntax * footnotes: Footnotes * headerid: Allow ids as part of  a  header  *  meta:
              Metadata  in  the  document  *  tables:  Support  tables * toc: Generate a table of
              contents * wikilinks: Wiki style links

       --paragraph-type
              Paragraph   structure.   choices   are   ['auto',   'block',   'single',   'print',
              'unformatted',  'off']  * auto: Try to auto detect paragraph type. * block: Treat a
              blank line as a paragraph break. * single: Assume every  line  is  a  paragraph.  *
              print:   Assume  every  line starting with 2+ spaces or a tab starts a paragraph. *
              unformatted: Most lines have hard line breaks, few/no blank lines or indents. Tries
              to determine structure and reformat the differentiate elements. * off: Don't modify
              the paragraph structure. This is useful when  combined  with  Markdown  or  Textile
              formatting to ensure no formatting is lost.

       --preserve-spaces
              Normally  extra  spaces  are  condensed  into  a single space. With this option all
              spaces will be displayed.

       --txt-in-remove-indents
              Normally extra space at the beginning of lines is retained. With this  option  they
              will be removed.

AZW3 OUTPUT OPTIONS

       --dont-compress
              Disable compression of the file contents.

       --extract-to
              Extract  the  contents  of  the generated AZW3 file to the specified directory. The
              contents of the directory are first deleted, so be careful.

       --mobi-toc-at-start
              When adding the Table of Contents to the book, add it at  the  start  of  the  book
              instead of the end. Not recommended.

       --no-inline-toc
              Don't  add  Table  of Contents to the book. Useful if the book has its own table of
              contents.

       --prefer-author-sort
              When present, use author sort field as author.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --share-not-sync
              Enable  sharing  of  book  content via Facebook etc.  on the Kindle. WARNING: Using
              this feature means that  the book will not auto sync its  last  read  position   on
              multiple devices. Complain to Amazon.

       --toc-title
              Title for any generated in-line table of contents.

DOCX OUTPUT OPTIONS

       --docx-custom-page-size
              Custom  size  of the document. Use the form widthxheight EG. 123x321 to specify the
              width and height (in pts). This overrides any specified page-size.

       --docx-no-cover
              Do not insert the book cover as an image at the start of the document. If  you  use
              this option, the book cover will be discarded.

       --docx-no-toc
              Do not insert the table of contents as a page at the start of the document.

       --docx-page-margin-bottom
              The  size  of the bottom page margin, in pts. Default is 72pt. Overrides the common
              bottom page margin setting, unless set to zero.

       --docx-page-margin-left
              The size of the left page margin, in pts. Default is  72pt.  Overrides  the  common
              left page margin setting.

       --docx-page-margin-right
              The  size  of  the right page margin, in pts. Default is 72pt. Overrides the common
              right page margin setting, unless set to zero.

       --docx-page-margin-top
              The size of the top page margin, in pts. Default is 72pt. Overrides the common  top
              page margin setting, unless set to zero.

       --docx-page-size
              The  size  of the page. Default is letter. Choices are [u'a0', u'a1', u'a2', u'a3',
              u'a4', u'a5', u'a6', u'b0', u'b1', u'b2', u'b3',  u'b4',  u'b5',  u'b6',  u'legal',
              u'letter']

       --extract-to
              Extract  the  contents  of  the generated DOCX file to the specified directory. The
              contents of the directory are first deleted, so be careful.

       --preserve-cover-aspect-ratio
              Preserve the aspect ratio of the cover image instead of stretching it out to  cover
              the entire page.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

EPUB OUTPUT OPTIONS

       --dont-split-on-page-breaks
              Turn off splitting at page breaks. Normally, input files are automatically split at
              every  page  break  into  two files. This gives an output e-book that can be parsed
              faster and with less resources. However, splitting is slow and if your source  file
              contains  a very large number of page breaks, you should turn off splitting on page
              breaks.

       --epub-flatten
              This option is needed only if you intend to use the EPUB with  FBReaderJ.  It  will
              flatten the file system inside the EPUB, putting all files into the top level.

       --epub-inline-toc
              Insert  an  inline  Table  of  Contents  that  will appear as part of the main book
              content.

       --epub-toc-at-end
              Put the inserted inline Table of Contents at the end of the  book  instead  of  the
              start.

       --extract-to
              Extract  the  contents  of  the generated EPUB file to the specified directory. The
              contents of the directory are first deleted, so be careful.

       --flow-size
              Split all HTML files larger than this size (in KB). This is necessary as most  EPUB
              readers  cannot  handle large file sizes. The default of 260KB is the size required
              for Adobe Digital Editions. Set to 0 to disable size based splitting.

       --no-default-epub-cover
              Normally, if the input file has no cover and you don't specify one, a default cover
              is  generated  with the title, authors, etc. This option disables the generation of
              this cover.

       --no-svg-cover
              Do not use SVG for the book cover. Use this option if your EPUB is going to be used
              on a device that does not support SVG, like the iPhone or the JetBook Lite. Without
              this option, such devices will display the cover as a blank page.

       --preserve-cover-aspect-ratio
              When using an SVG cover, this option will cause the cover to  scale  to  cover  the
              available  screen  area,  but  still  preserve  its aspect ratio (ratio of width to
              height). That means there may be white borders at the sides or top  and  bottom  of
              the image, but the image will never be distorted. Without this option the image may
              be slightly distorted, but there will be no borders.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --toc-title
              Title for any generated in-line table of contents.

FB2 OUTPUT OPTIONS

       --fb2-genre
              Genre   for   the   book.   Choices:  sf_history,  sf_action,  sf_epic,  sf_heroic,
              sf_detective, sf_cyberpunk, sf_space, sf_social, sf_horror,  sf_humor,  sf_fantasy,
              sf,  det_classic,  det_police,  det_action,  det_irony, det_history, det_espionage,
              det_crime, det_political, det_maniac, det_hard, thriller, detective, prose_classic,
              prose_history,      prose_contemporary,      prose_counter,      prose_rus_classic,
              prose_su_classics,  love_contemporary,  love_history,  love_detective,  love_short,
              love_erotica,   adv_western,   adv_history,   adv_indian,   adv_maritime,  adv_geo,
              adv_animal, adventure, child_tale, child_verse, child_prose,  child_sf,  child_det,
              child_adv,    child_education,    children,    poetry,   dramaturgy,   antique_ant,
              antique_european,   antique_russian,    antique_east,    antique_myths,    antique,
              sci_history,    sci_psychology,    sci_culture,    sci_religion,    sci_philosophy,
              sci_politics,  sci_business,  sci_juris,  sci_linguistic,  sci_medicine,  sci_phys,
              sci_math,  sci_chem,  sci_biology,  sci_tech,  science, comp_www, comp_programming,
              comp_hard, comp_soft, comp_db, comp_osnet, computers, ref_encyc, ref_dict, ref_ref,
              ref_guide,   reference,  nonf_biography,  nonf_publicism,  nonf_criticism,  design,
              nonfiction,    religion_rel,    religion_esoterics,    religion_self,     religion,
              humor_anecdote,   humor_prose,   humor_verse,   humor,   home_cooking,   home_pets,
              home_crafts,  home_entertain,  home_health,  home_garden,   home_diy,   home_sport,
              home_sex,                                home                                  See:
              http://www.fictionbook.org/index.php/Eng:FictionBook_2.1_genres for a complete list
              with descriptions.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --sectionize
              Specify the sectionization of elements. A value of "nothing" turns the book into  a
              single  section.  A  value  of "files" turns each file into a separate section; use
              this if your device is having trouble. A value of "Table  of  Contents"  turns  the
              entries  in  the  Table  of Contents into titles and creates sections; if it fails,
              adjust the "Structure detection" and/or  "Table  of  Contents"  settings  (turn  on
              "Force use of auto-generated Table of Contents").

HTML OUTPUT OPTIONS

       --extract-to
              Extract the contents of the generated ZIP file to the specified directory. WARNING:
              The contents of the directory will be deleted.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --template-css
              CSS file used for the output instead of the default file

       --template-html
              Template  used  for  the generation of the HTML contents of the book instead of the
              default file

       --template-html-index
              Template used for generation of the HTML index file instead of the default file

HTMLZ OUTPUT OPTIONS

       --htmlz-class-style
              How to handle the CSS when using css-type = 'class'. Default is external. external:
              Use  an  external CSS file that is linked in the document. inline: Place the CSS in
              the head section of the document.

       --htmlz-css-type
              Specify the handling of CSS. Default is class. class:  Use  CSS  classes  and  have
              elements  reference  them. inline: Write the CSS as an inline style attribute. tag:
              Turn as many CSS styles as possible into HTML tags.

       --htmlz-title-filename
              If set this option causes the file name of the HTML file inside the  HTMLZ  archive
              to be based on the book title.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

LIT OUTPUT OPTIONS

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

LRF OUTPUT OPTIONS

       --enable-autorotation
              Enable auto-rotation of images that are wider than the screen width.

       --header
              Add a header to all the pages with title and author.

       --header-format
              Set  the  format  of  the header. %a is replaced by the author and %t by the title.
              Default is %t by %a

       --header-separation
              Add extra spacing below the header. Default is 0 pt.

       --minimum-indent
              Minimum paragraph indent (the indent of the first line  of  a  paragraph)  in  pts.
              Default: 0

       --mono-family
              The monospace family of fonts to embed

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --render-tables-as-images
              Render tables in the HTML as images (useful if the document has  large  or  complex
              tables)

       --sans-family
              The sans-serif family of fonts to embed

       --serif-family
              The serif family of fonts to embed

       --text-size-multiplier-for-rendered-tables
              Multiply the size of text in rendered tables by this factor. Default is 1.0

       --wordspace
              Set the space between words in pts. Default is 2.5

MOBI OUTPUT OPTIONS

       --dont-compress
              Disable compression of the file contents.

       --extract-to
              Extract  the  contents  of  the generated MOBI file to the specified directory. The
              contents of the directory are first deleted, so be careful.

       --mobi-file-type
              By default calibre generates MOBI files that contain the old MOBI  6  format.  This
              format  is  compatible with all devices. However, by changing this setting, you can
              tell calibre to generate MOBI files that contain  both  MOBI  6  and  the  new  KF8
              format,  or  only  the  new KF8 format. KF8 has more features than MOBI 6, but only
              works with newer Kindles. Allowed values: old, both, new

       --mobi-ignore-margins
              Ignore margins in the input document. If False, then the MOBI  output  plugin  will
              try  to  convert  margins specified in the input document, otherwise it will ignore
              them.

       --mobi-keep-original-images
              By default calibre converts all images to JPEG format in the output MOBI file. This
              is  for  maximum  compatibility as some older MOBI viewers have problems with other
              image formats. This option tells calibre not to do this. Useful  if  your  document
              contains lots of GIF/PNG images that become very large when converted to JPEG.

       --mobi-toc-at-start
              When  adding  the  Table  of  Contents to the book, add it at the start of the book
              instead of the end. Not recommended.

       --no-inline-toc
              Don't add Table of Contents to the book. Useful if the book has its  own  table  of
              contents.

       --personal-doc
              Tag for MOBI files to be marked as personal documents. This option has no effect on
              the conversion. It is used only when sending MOBI files to a device.  If  the  file
              being  sent  has  the  specified tag, it will be marked as a personal document when
              sent to the Kindle.

       --prefer-author-sort
              When present, use author sort field as author.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --share-not-sync
              Enable  sharing  of  book  content via Facebook etc.  on the Kindle. WARNING: Using
              this feature means that  the book will not auto sync its  last  read  position   on
              multiple devices. Complain to Amazon.

       --toc-title
              Title for any generated in-line table of contents.

OEB OUTPUT OPTIONS

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

PDB OUTPUT OPTIONS

       --format, -f
              Format to use inside the pdb container. Choices are: ['doc', 'ereader', 'ztxt']

       --inline-toc
              Add Table of Contents to beginning of the book.

       --pdb-output-encoding
              Specify the character encoding of the output document. The default is cp1252. Note:
              This option is not honored by all formats.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

PDF OUTPUT OPTIONS

       --custom-size
              Custom size of the document. Use the form widthxheight e.g. 123x321 to specify  the
              width and height. This overrides any specified paper-size.

       --paper-size
              The  size  of  the  paper.  This  size will be overridden when a non default output
              profile is used. Default is letter. Choices are [u'a0', u'a1', u'a2', u'a3', u'a4',
              u'a5', u'a6', u'b0', u'b1', u'b2', u'b3', u'b4', u'b5', u'b6', u'legal', u'letter']

       --pdf-add-toc
              Add  a  Table  of Contents at the end of the PDF that lists page numbers. Useful if
              you want to print out the PDF. If this PDF is intended for electronic use, use  the
              PDF Outline instead.

       --pdf-default-font-size
              The default font size

       --pdf-footer-template
              An  HTML  template  used  to generate footers on every page. The strings _PAGENUM_,
              _TITLE_, _AUTHOR_ and _SECTION_ will be replaced by their current values.

       --pdf-header-template
              An HTML template used to generate headers on every  page.  The  strings  _PAGENUM_,
              _TITLE_, _AUTHOR_ and _SECTION_ will be replaced by their current values.

       --pdf-mark-links
              Surround all links with a red box, useful for debugging.

       --pdf-mono-family
              The font family used to render monospace fonts

       --pdf-mono-font-size
              The default font size for monospaced text

       --pdf-page-margin-bottom
              The  size  of the bottom page margin, in pts. Default is 72pt. Overrides the common
              bottom page margin setting, unless set to zero.

       --pdf-page-margin-left
              The size of the left page margin, in pts. Default is  72pt.  Overrides  the  common
              left page margin setting.

       --pdf-page-margin-right
              The  size  of  the right page margin, in pts. Default is 72pt. Overrides the common
              right page margin setting, unless set to zero.

       --pdf-page-margin-top
              The size of the top page margin, in pts. Default is 72pt. Overrides the common  top
              page margin setting, unless set to zero.

       --pdf-page-numbers
              Add  page  numbers  to  the  bottom of every page in the generated PDF file. If you
              specify a footer template, it will take precedence over this option.

       --pdf-sans-family
              The font family used to render sans-serif fonts

       --pdf-serif-family
              The font family used to render serif fonts

       --pdf-standard-font
              The font family used to render monospace fonts

       --preserve-cover-aspect-ratio
              Preserve the aspect ratio of the cover, instead of stretching it to fill  the  full
              first page of the generated pdf.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --toc-title
              Title for generated table of contents.

       --uncompressed-pdf
              Generate an uncompressed PDF, useful for debugging, only works  with  the  new  PDF
              engine.

       --unit, -u
              The  unit  of  measure  for page sizes. Default is inch. Choices are ['millimeter',
              'centimeter', 'point', 'inch', 'pica', 'didot', 'cicero', 'devicepixel'] Note: This
              does not override the unit for margins!

       --use-profile-size
              Instead  of  using  the paper size specified in the PDF Output options, use a paper
              size corresponding to the current output profile. Useful if you want to generate  a
              PDF for viewing on a specific device.

PML OUTPUT OPTIONS

       --full-image-depth
              Do  not  reduce  the  size or bit depth of images. Images have their size and depth
              reduced by default to accommodate applications that can not convert images on their
              own such as Dropbook.

       --inline-toc
              Add Table of Contents to beginning of the book.

       --pml-output-encoding
              Specify the character encoding of the output document. The default is cp1252.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

RB OUTPUT OPTIONS

       --inline-toc
              Add Table of Contents to beginning of the book.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

RTF OUTPUT OPTIONS

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

SNB OUTPUT OPTIONS

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --snb-dont-indent-first-line
              Specify  whether  or not to insert two space characters to indent the first line of
              each paragraph.

       --snb-full-screen
              Resize all the images for full screen view.

       --snb-hide-chapter-name
              Specify whether or not to hide the chapter  title  for  each  chapter.  Useful  for
              image-only output (eg. comics).

       --snb-insert-empty-line
              Specify whether or not to insert an empty line between two paragraphs.

       --snb-max-line-length
              The  maximum  number  of characters per line. This splits on the first space before
              the specified value. If no space is found the line will  be  broken  at  the  space
              after  and  will  exceed  the  specified  value.  Also,  there  is  a minimum of 25
              characters. Use 0 to disable line splitting.

       --snb-output-encoding
              Specify the character encoding of the output document. The default is utf-8.

TCR OUTPUT OPTIONS

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --tcr-output-encoding
              Specify the character encoding of the output document. The default is utf-8.

TXT OUTPUT OPTIONS

       --force-max-line-length
              Force  splitting on the max-line-length value when no space is present. Also allows
              max-line-length to be below the minimum

       --inline-toc
              Add Table of Contents to beginning of the book.

       --keep-color
              Do  not   remove   font   color   from   output.   This   is   only   useful   when
              txt-output-formatting  is  set  to  textile.  Textile  is  the only formatting that
              supports setting font color. If this option is not specified font color will not be
              set and default to the color displayed by the reader (generally this is black).

       --keep-image-references
              Do not remove image references within the document. This is only useful when paired
              with a txt-output-formatting option that is  not  none  because  links  are  always
              removed with plain text output.

       --keep-links
              Do  not  remove  links  within the document. This is only useful when paired with a
              txt-output-formatting option that is not none because links are always removed with
              plain text output.

       --max-line-length
              The  maximum  number  of characters per line. This splits on the first space before
              the specified value. If no space is found the line will  be  broken  at  the  space
              after  and  will  exceed  the  specified  value.  Also,  there  is  a minimum of 25
              characters. Use 0 to disable line splitting.

       --newline, -n
              Type of newline to use.  Options  are  ['old_mac',  'system',  'unix',  'windows'].
              Default is 'system'. Use 'old_mac' for compatibility with Mac OS 9 and earlier. For
              macOS use 'unix'. 'system' will default to the newline type used by this OS.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --txt-output-encoding
              Specify the character encoding of the output document. The default is utf-8.

       --txt-output-formatting
              Formatting  used  within  the  document.  *  plain: Produce plain text. * markdown:
              Produce Markdown formatted text. * textile: Produce Textile formatted text.

TXTZ OUTPUT OPTIONS

       --force-max-line-length
              Force splitting on the max-line-length value when no space is present. Also  allows
              max-line-length to be below the minimum

       --inline-toc
              Add Table of Contents to beginning of the book.

       --keep-color
              Do   not   remove   font   color   from   output.   This   is   only   useful  when
              txt-output-formatting is set to  textile.  Textile  is  the  only  formatting  that
              supports setting font color. If this option is not specified font color will not be
              set and default to the color displayed by the reader (generally this is black).

       --keep-image-references
              Do not remove image references within the document. This is only useful when paired
              with  a  txt-output-formatting  option  that  is  not none because links are always
              removed with plain text output.

       --keep-links
              Do not remove links within the document. This is only useful  when  paired  with  a
              txt-output-formatting option that is not none because links are always removed with
              plain text output.

       --max-line-length
              The maximum number of characters per line. This splits on the  first  space  before
              the  specified  value.  If  no  space is found the line will be broken at the space
              after and will exceed  the  specified  value.  Also,  there  is  a  minimum  of  25
              characters. Use 0 to disable line splitting.

       --newline, -n
              Type  of  newline  to  use.  Options  are ['old_mac', 'system', 'unix', 'windows'].
              Default is 'system'. Use 'old_mac' for compatibility with Mac OS 9 and earlier. For
              macOS use 'unix'. 'system' will default to the newline type used by this OS.

       --pretty-print
              If specified, the output plugin will try to create output that is as human readable
              as possible. May not have any effect for some output plugins.

       --txt-output-encoding
              Specify the character encoding of the output document. The default is utf-8.

       --txt-output-formatting
              Formatting used within the document. *  plain:  Produce  plain  text.  *  markdown:
              Produce Markdown formatted text. * textile: Produce Textile formatted text.

AUTHOR

       Kovid Goyal

COPYRIGHT

       Kovid Goyal