---
name: "ximtoppm"
section: "1"
platform: "linux"
package: "netpbm"
version: "10.86.51-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ximtoppm"
---

# ximtoppm(1)

convert an Xim file to a PPM image

## NAME

ximtoppm - convert an Xim file to a PPM image

## SYNOPSIS

**ximtoppm**

\[**--alphaout=**{*alpha-filename*,**-**}\] \[*ximfile*\]

## DESCRIPTION

This program is part of **Netpbm**(1) .

**ximptoppm** reads an Xim file as input and produces a PPM image as output.  The Xim toolkit is included in the contrib tree of the X.V11R4 release.

## OPTIONS

In addition to the options common to all programs based on libnetpbm (most notably **-quiet**, see \
  Common Options ⟨index.html#commonoptions⟩ ), **ximtoppm** recognizes the following command line option:

You can abbreviate any option to its shortest unique prefix.

- **--alphaout=***alpha-filename*

  **ximtoppm** creates a PGM file containing the transparency channel values in the input image.  If the input image doesn't contain a transparency channel, the *alpha-filename* file contains all zero (transparent) transparency values.  If you don't specify **--alphaout**, **ximtoppm** does not generate a transparency file, and if the input image has a transparency channel, **ximtoppm** simply discards it.

  If you specify **-** as the filename, **ximtoppm** writes the transparency output to Standard Output and discards the image.

  Actually, an Xim image can contain an arbitrary fourth channel -- it need not be a transparency channel.  **ximtoppm** extracts any fourth channel it finds as described above; it doesn't matter if it is a transparency channel or not.

  See [**pamcomp**(1)](/pamcomp/1.md)  for one way to use the transparency output file.

## SEE ALSO

[**pamcomp**(1)](/pamcomp/1.md) , **ppm**(1)

## AUTHOR

Copyright (C) 1991 by Jef Poskanzer.

## DOCUMENT SOURCE

This manual page was generated by the Netpbm tool 'makeman' from HTML source.  The master documentation is at

-

  **http://netpbm.sourceforge.net/doc/ximtoppm.html**