QRENCODE(1)

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

SYNOPSIS
qrencode [OPTION]... [STRING]

DESCRIPTION
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 image.

OPTIONS

-h, --help
    display help message.

-o FILENAME, --output=FILENAME
    write PNG image to FILENAME. If '-' is specified, the result will be output to standard output.

-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)

-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.

-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.

EXAMPLES

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.

AUTHOR
Written by Kentaro Fukuchi.

COPYRIGHT
Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi.