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BLOCKDIAG3(1) General Commands Manual BLOCKDIAG3(1)


blockdiag3 - generate block-diagram image file from spec-text file.


blockdiag3 [options] file


This manual page documents briefly the blockdiag3 commands.

blockdiag3 is a program that generate block-diagram image file from spec-text file.


These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. For a complete description, see the SEE ALSO.

show program's version number and exit
Show summary of options
Pass diagram image to anti-alias filter
read configurations from FILE
write diagram to FILE
use FONT to draw diagram
use FONTMAP file to draw diagram
Separate diagram images for each group
Output diagram as TYPE format
Do not output doctype definition tags (SVG only)
do not make transparent background of diagram (PNG only)


The programs are documented fully by


blockdiag was written by Takeshi Komiya <>

This manual page was written by Kouhei Maeda <>, for the Debian project (and may be used by others).

May 9, 2011