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CentOS 7.0 - man page for qrencode (centos section 1)

QRENCODE(1)						      General Commands Manual						       QRENCODE(1)

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) -s NUMBER, --size=NUMBER specify the size of dot (pixel). (default=3) -l {LMQH}, --level={LMQH} specify error collectin level from L (lowest) to H (highest). (default=L) -v NUMBER, --symversion=NUMBER specify the version of the symbol. (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,EPS,SVG,ANSI,ANSI256,ASCII,ASCIIi,UTF8,ANSIUTF8} --type={PNG,EPS,SVG,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 sup- port available only in PNG and SVG. -V, --version display the version number and copyrights of the qrencode. [STRING] input data. If it is not specified, data will be taken from standard input.
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.
Written by Kentaro Fukuchi.
Main Web Site: Source code repository:
Copyright (C) 2006-2012 Kentaro Fukuchi. qrencode 3.4.1 Oct. 9, 2012 QRENCODE(1)