Provided by: qrencode_4.0.2-2_amd64 bug


       qrencode - Encode input data in a QR Code and save as a PNG or EPS image.


       qrencode [OPTION]...  [STRING]


       Libqrencode  is  a  library  for encoding data in a QR Code symbol, a kind of 2D symbology
       that can be scanned by handy terminals such as a mobile phone with CCD. The capacity of QR
       Code is up to 7000 digits or 4000 characters, and has high robustness.

       Qrencode  is  a  utility software using libqrencode to encode string data in a QR Code and
       save as a PNG or EPS image.


       -h, --help
              display help message.

       -o FILENAME, --output=FILENAME
              write image to FILENAME. If '-' is specified, the result will be output to standard
              output.  If  -S  is  given,  structured  symbols  are  written  to FILENAME-01.png,
              FILENAME-02.png, ... (suffix is removed from FILENAME, if specified)

       -r FILENAME, --read-from=FILENAME
              read input data from FILENAME.

       -s NUMBER, --size=NUMBER
              specify the size of dot (pixel). (default=3)

       -l {LMQH}, --level={LMQH}
              specify error correction level from L (lowest) to H (highest). (default=L)

       -v NUMBER, --symversion=NUMBER
              specify  the  minimum  version  of  the  symbol.  See  SYMBOL  VERSIONS  for   more
              information. (default=auto)

       -m NUMBER, --margin=NUMBER
              specify the width of margin. (default=4)

       -d NUMBER, --dpi=NUMBER
              specify the DPI of the generated PNG. (default=72)

              specify the type of the generated image. (default=PNG)

       -S, --structured
              make structured symbols. Version must be specified.

       -k, --kanji
              assume that the input text contains kanji (shift-jis).

       -c, --casesensitive
              encode lower-case alphabet characters in 8-bit mode. (default)

       -i, --ignorecase
              ignore case distinctions and use only upper-case characters.

       -8, --8bit
              encode entire data in 8-bit mode. -k, -c and -i will be ignored.

       -M, --micro
              encode in a Micro QR Code. (experimental)

              specify  foreground/background  color  in  hexadecimal  notation.  6-digit (RGB) or
              8-digit (RGBA) form are supported.  Color output support available only in PNG, EPS
              and SVG.

       -V, --version
              display the version number and copyrights of the qrencode.

              display verbose information to stderr.

              input data. If it is not specified, data will be taken from standard input.


       The  symbol  versions  of  QR Code range from Version 1 to Version 40.  Each version has a
       different module configuration or number of modules, ranging  from  Version  1  (21  x  21
       modules)  up  to  Version  40 (177 x 177 modules).  Each higher version number comprises 4
       additional modules per side by default.   See
       for a detailed version list.


       qrencode -l L -v 1 -o output.png 'Hello, world!'
              encode into a symbol version 1, level L.

       qrencode -iSv 1 --output=output.png
              read  standard  input  and  encode  it  into a structured-appended symbols in case-
              insensitive mode.

       qrencode -S -v 40 -l L -r bigfile.txt -o output.png
              read input data from bigfile.txt and encode into a symbol version 40, level L.


       Written by Kentaro Fukuchi.


       Main Web Site:

       Source code repository:


       Copyright (C) 2006-2017 Kentaro Fukuchi.