xenial (1) sfddiff.1.gz

NAME

       sfddiff - compare two font files

SYNOPSIS

       sfddiff   [--help]   [--ignorehints]   [--ignorenames]  [--ignoregpos]  [--ignoregsub]  [--ignorebitmaps]
       [--exact] [--warn] [--merge outfile] [--usage] [--version] fontfile1 fontfile2

DESCRIPTION

       The program sfddiff compares two font files, which may be in any format fontforge(1) can read.   It  will
       notice the following differences:

       1)     Characters are present in one font but not in the other.

       2)     Characters  are  present  in  both  fonts  but have different sets of outlines or references.  The
              outlines may be compared so that only exact matches are accepted, or so that a  fuzzier  match  is
              used.  Similarly references may need to match exactly, or may be matched after an unlink.

              This  fuzzy comparison is useful when comparing truetype and postscript fonts, or when comparing a
              font with references to one without.

       3)     The postscript hints or truetype instructions are different.

       4)     The font names (the truetype `name' table) differ.

       5)     The kerning (and other `gpos' information) differs.

       6)     The ligatures (and other `gsub' information) differ.

       7)     Any bitmap strikes present in one font but not in the other.

       8)     Any bitmap characters present in one strike of one font but in the equivalent strike of the other.

       9)     Any bitmap characters which differ.

OPTIONS

       --help Provide a description with a list of the available options.

       --ignorehints
              Suppress the reporting of hint/instruction differences.

       --ignoregpos
              Suppress the reporting of kerning (and other `gpos') differences.

       --ignoregsub
              Suppress the reporting of ligature (and other `gsub') differences.

       --ignorenames
              Suppress the reporting of name string differences.

       --ignorebitmaps
              Suppress the reporting of bitmap differences.

       --exact
              Require outlines to match exactly.

       --warn Warn if the outlines/references are slightly different.

       --merge outfile
              Store a merged version of the two fonts into the specified output file.  The merged data  will  be
              based  on  sfdfile1,  as  well  as  any characters present in sfdfile2 but not in sfdfile1 will be
              added, and the outlines of sfdfile2 will be placed in the background.  Finally, for any characters
              with  different  outlines  or references the background of the character will contain the outlines
              from sfdfile2 (references will be unlinked into outlines and those outlines also will be added).

       --usage
              Display the usage description.

       --version
              Display the current version.

SEE ALSO

       fontforge(1)

       The HTML version of the fontforge manual at:

              http://fontforge.sourceforge.net/

AUTHOR

       Copyright (C) 2000-2006 by George Williams (gww@silcom.com).  Manual page heavily rewritten and  modified
       to use standard -man(5) macros by R.P.C. Rodgers (rodgers@nlm.nih.gov), 23 October 2002.

                                                  8 April 2006                                        SFDDIFF(1)