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qrencode(1) [debian man page]

QRENCODE(1)						      General Commands Manual						       QRENCODE(1)

NAME

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

OPTIONS

       -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,ANSI,ANSI256}, --type={PNG,EPS,ANSI,ANSI256}
	      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)

       -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.

RESOURCES

       Main Web Site: http://fukuchi.org/works/qrencode/

       Source code repository: https://github.com/fukuchi/libqrencode/

COPYRIGHT

       Copyright (C) 2006-2012 Kentaro Fukuchi.

qrencode 3.3.0							   Feb. 29, 2012						       QRENCODE(1)

Check Out this Related Man Page

img-png(3tk)															      img-png(3tk)

NAME

       img-png - Img, Portable Network Graphics format (png)

SYNOPSIS

       package require Tk

       package require img::png  ?1.3?

       image create photo ?name? ?options?

DESCRIPTION

       The  package  img::png  is a sub-package of Img. It can be loaded as a part of the complete Img support, via package require Img, or on its
       own, via package require img::png.

       Like all packages of Img it does not provide new commands, but extends the existing Tk command image so that it supports  files	containing
       raster images in the Portable Network Graphics format (png). More specifically img::png extends Tk's photo image type.

       The  name  of  the new format handler is png.  This handler provides new additional configuration options. See section PNG OPTIONS for more
       detailed explanations.

       All of the above means that in a call like

       image create photo ?name? ?options?

       [1]    Image data in png format (options -data and -file) is detected automatically.

       [2]    The format name png is recognized by the option -format.	In addition the value for the option is treated as list  and  may  contain
	      any of the special options listed in section PNG OPTIONS.

PNG OPTIONS

       The  handler  provides no true options at all, but accepts pairs of keys and values when writing a PNG file. Each pair will be written as a
       named text chunk where the key provides the name of the chunk and the value its contents.  For example
	   png Author <name> Title <title> Description ...

TRANSPARENCY

       If you want to write images to disk which contain transparency information (e.g. PNG with alpha channel) you need at least Tk 8.3.

SEE ALSO

       img-bmp, img-gif, img-ico, img-intro, img-jpeg, img-pcx, img-pixmap, img-png, img-ppm, img-ps, img-sgi, img-sun,  img-tga,  img-tiff,  img-
       window, img-xbm, img-xpm

KEYWORDS

       image handling, png, tk

COPYRIGHT

       Copyright (c) 1995-2003 Jan Nijtmans <nijtmans@users.sourceforge.com>

Img									1.3							      img-png(3tk)
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