---
name: "blockdiag"
section: "1"
platform: "linux"
package: "python-blockdiag"
version: "1.5.3+dfsg-5.2"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/blockdiag"
---

# blockdiag(1)

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

## NAME

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

## SYNOPSIS

**blockdiag** \[*options*\] *file*

## DESCRIPTION

This manual page documents briefly the **blockdiag** commands.

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

## OPTIONS

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**.

- **--version**

  show program's version number and exit

- **-h, --help**

  Show summary of options

- **-a, --antialias**

  Pass diagram image to anti-alias filter

- **-c FILE, --config=FILE**

  read configurations from FILE

- **-o FILE**

  write diagram to FILE

- **-f FONT, --font=FONT**

  use FONT to draw diagram

- **--fontmap=FONT**

  use FONTMAP file to draw diagram

- **-s, --separate**

  Separate diagram images for each group

- **-T TYPE**

  Output diagram as TYPE format

- **--nodoctype**

  Do not output doctype definition tags (SVG only)

- **--no-transparency**

  do not make transparent background of diagram (PNG only)

## SEE ALSO

The programs are documented fully by\
 **http://tk0miya.bitbucket.org/blockdiag/build/html/index.html**

## AUTHOR

blockdiag was written by Takeshi Komiya \<i.tkomiya@gmail.com\>

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