1QRENCODE(1) General Commands Manual QRENCODE(1)
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6 qrencode - Encode input data in a QR Code and save as a PNG or EPS
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10 qrencode [OPTION]... [STRING]
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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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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,ANSIUTF8}
54 --type={PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,ANSIUTF8}
55 specify the type of the generated image. (default=PNG)
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57 -S, --structured
58 make structured symbols. Version must be specified.
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60 -k, --kanji
61 assume that the input text contains kanji (shift-jis).
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63 -c, --casesensitive
64 encode lower-case alphabet characters in 8-bit mode. (default)
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66 -i, --ignorecase
67 ignore case distinctions and use only upper-case characters.
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69 -8, --8bit
70 encode entire data in 8-bit mode. -k, -c and -i will be ignored.
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72 -M, --micro
73 encode in a Micro QR Code. (experimental)
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75 --foreground=RRGGBB[AA]
76 --background=RRGGBB[AA]
77 specify foreground/background color in hexadecimal notation.
78 6-digit (RGB) or 8-digit (RGBA) form are supported. Color out‐
79 put support available only in PNG, EPS and SVG.
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81 -V, --version
82 display the version number and copyrights of the qrencode.
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84 --verbose
85 display verbose information to stderr.
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87 [STRING]
88 input data. If it is not specified, data will be taken from
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93 The symbol versions of QR Code range from Version 1 to Version 40.
94 Each version has a different module configuration or number of modules,
95 ranging from Version 1 (21 x 21 modules) up to Version 40 (177 x 177
96 modules). Each higher version number comprises 4 additional modules
97 per side by default. See http://www.qrcode.com/en/about/version.html
98 for a detailed version list.
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102 qrencode -l L -v 1 -o output.png 'Hello, world!'
103 encode into a symbol version 1, level L.
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105 qrencode -iSv 1 --output=output.png
106 read standard input and encode it into a structured-appended
107 symbols in case-insensitive mode.
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109 qrencode -S -v 40 -l L -r bigfile.txt -o output.png
110 read input data from bigfile.txt and encode into a symbol ver‐
111 sion 40, level L.
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115 Written by Kentaro Fukuchi.
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119 Main Web Site: https://fukuchi.org/works/qrencode/
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121 Source code repository: https://github.com/fukuchi/libqrencode/
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125 Copyright (C) 2006-2017 Kentaro Fukuchi.
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129qrencode 4.0.2 Sep. 21, 2017 QRENCODE(1)