1QRENCODE(1)                 General Commands Manual                QRENCODE(1)
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NAME

6       qrencode  - Encode input data in a QR Code and save as a PNG or EPS im‐
7       age.
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SYNOPSIS

10       qrencode [-o FILENAME] [OPTION]...  [STRING]
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DESCRIPTION

14       Libqrencode is a library for encoding data in a QR Code symbol, a  kind
15       of 2D symbology that can be scanned by handy terminals such as a mobile
16       phone with CCD. The capacity of QR Code is up to 7000  digits  or  4000
17       characters, and has high robustness.
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19       Qrencode  is a utility software using libqrencode to encode string data
20       in a QR Code and save as a PNG or EPS image.
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OPTIONS

24       -h, --help
25              display help message.
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27       -o FILENAME, --output=FILENAME
28              write image to FILENAME. If '-' is specified, the result will be
29              output  to  standard  output. If -S is given, structured symbols
30              are written to FILENAME-01.png, FILENAME-02.png, ... (suffix  is
31              removed from FILENAME, if specified)
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33       -r FILENAME, --read-from=FILENAME
34              read input data from FILENAME.
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36       -s NUMBER, --size=NUMBER
37              specify the size of dot (pixel). (default=3)
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39       -l {LMQH}, --level={LMQH}
40              specify  error  correction level from L (lowest) to H (highest).
41              (default=L)
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43       -v NUMBER, --symversion=NUMBER
44              specify the minimum version of the symbol. See  SYMBOL  VERSIONS
45              for more information. (default=auto)
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47       -m NUMBER, --margin=NUMBER
48              specify the width of margin. (default=4)
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50       -d NUMBER, --dpi=NUMBER
51              specify the DPI of the generated PNG. (default=72)
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53       -t    {PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,UTF8i,ANSI‐
54       UTF8,ANSIUTF8i,ANSI256UTF8}
55       --type={PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,UTF8i,AN‐
56       SIUTF8,ANSIUTF8i,ANSI256UTF8}
57              specify the type of the generated image. (default=PNG)
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59       -S, --structured
60              make  structured  symbols. Version number must be specified with
61              '-v'.
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63       -k, --kanji
64              assume that the input text contains kanji (shift-jis).
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66       -c, --casesensitive
67              encode lower-case alphabet characters in 8-bit mode. (default)
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69       -i, --ignorecase
70              ignore case distinctions and use only upper-case characters.
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72       -8, --8bit
73              encode entire data in 8-bit mode. -k, -c and -i will be ignored.
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75       -M, --micro
76              encode in a Micro QR Code. See MICRO QR CODE for  more  informa‐
77              tion.
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79       --rle  enable run-length encoding for SVG.
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81       --svg-path
82              use single path to draw modules for SVG.
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84       --inline
85              only  useful  for  SVG  output, generates an SVG without the XML
86              tag.
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88       --foreground=RRGGBB[AA]
89       --background=RRGGBB[AA]
90              specify foreground/background  color  in  hexadecimal  notation.
91              6-digit  (RGB) or 8-digit (RGBA) form are supported.  Color out‐
92              put support available only in PNG, EPS and SVG.
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94       --strict-version
95              disable automatic version number adjustment. If the  input  data
96              is  too  large for the specified version, the program exits with
97              the code of 1.
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99       -V, --version
100              display the version number and copyrights of the qrencode.
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102       --verbose
103              display verbose information to stderr.
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105       [STRING]
106              input data. If it is not specified,  data  will  be  taken  from
107              standard input.
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SYMBOL VERSIONS

111       The  symbol  versions  of  QR  Code range from Version 1 to Version 40.
112       Each version has a different module configuration or number of modules,
113       ranging  from  Version  1 (21 x 21 modules) up to Version 40 (177 x 177
114       modules).  Each higher version number comprises  4  additional  modules
115       per  side  by default.  See http://www.qrcode.com/en/about/version.html
116       for a detailed version list.
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MICRO QR CODE

120       With Micro QR Code, You can embed data in a smaller area than  with  QR
121       Code,  but  the  data capacity is strongly limited. The symbol versions
122       range from Version 1 to 4.
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EXAMPLES

126       qrencode -l L -v 1 -o output.png 'Hello, world!'
127              encode into a symbol version 1, level L.
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129       qrencode -iSv 1 --output=output.png
130              read standard input and encode  it  into  a  structured-appended
131              symbols in case-insensitive mode.
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133       qrencode -S -v 40 -l L -r bigfile.txt -o output.png
134              read  input  data from bigfile.txt and encode into a symbol ver‐
135              sion 40, level L.
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AUTHOR

139       Written by Kentaro Fukuchi.
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RESOURCES

143       Main Web Site: https://fukuchi.org/works/qrencode/
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145       Source code repository: https://github.com/fukuchi/libqrencode/
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149       Copyright (C) 2006-2018 Kentaro Fukuchi.
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153qrencode 4.1.1                   Aug. 28, 2020                     QRENCODE(1)
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