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)
- -t
{PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,ANSIUTF8}
- --type={PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,ANSIUTF8}
- 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)
- --foreground=RRGGBB[AA]
- --background=RRGGBB[AA]
- 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.
- --verbose
- display verbose information to stderr.
- [STRING]
- 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 http://www.qrcode.com/en/about/version.html for a detailed
version list.
Written by Kentaro Fukuchi.
Copyright (C) 2006-2017 Kentaro Fukuchi.