---
name: "sig2dot"
section: "1"
platform: "linux"
package: "signing-party"
version: "2.11-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/sig2dot"
---

# sig2dot(1)

creates a .dot file from a GPG signature listing

## NAME

sig2dot - creates a .dot file from a GPG signature listing

## SYNOPSIS

**sig2dot \[OPTIONS\] \< input-file \> output-file**\

## DESCRIPTION

This manual page documents briefly the **sig2dot** command. Sig2dot parses the output of "gpg --list-sigs" and produces a .dot file that can be used as input to a graphing program.

## OPTIONS

*sig2dot* accepts the following options:

- **-b**

  Black and white / do not colorize.

- **-d \<date\>**

  Render graph as it appeared on \<date\> (ignores more recent signatures).  Date must be in the format "YYYY-MM-DD". Will also ignore keys that have since been revoked.

- **-s \<html-file-name\>**

  Produces a sory HTML statistics file with the number of signatures per node.

- **-a**

  Graph all keys, even if they do not have a signature

- **-r \<key-revoked-string\>**

  Sets the text for the key-revoked string used by GnuPG. The default is  what is used in the English version. This parameter can be set for versions  of GnuPG localized to other languages. Default: "\[revoked".

-

  - **-t \<title\>**

  Sets the title for the graph generated. Default: "Keyring Statistics".

- **-u \<user-not-found-string\>**

  Sets the text for the user-not-found string used by GnuPG. The default is  what is used in the English version. This parameter can be set for versions  of GnuPG localized to other languages. Default: "\[user id not found\]".

- **-q**

  Be quiet.

- **-h**

  Print help and exit.

- **-v**

  Print version and exit.

## EXAMPLE

gpg --list-sigs \| sig2dot \> sigs.dot

springgraph \< sigs.dot \> sigs.png

## SEE ALSO

**[springgraph(1)](/springgraph/1.md)** **gnupg(1)**

## AUTHORS

Darxus@ChaosReigns.com with modifications by Kevin Rosenberg. Versions 0.35 and later are by Christoph Berg \<cb@df7cb.de\>. This manual page was written by Kevin M. Rosenberg \<kmr@debian.org\>, for the Debian GNU/Linux system (but may be used by others).