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pnmtoddif — Convert a PNM image to a DDIF image file. More information: <https://netpbm.sourceforge.net/doc/pnmt

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandconvertcliimageddifpnmtoddifpnm

Problem

How to use the pnmtoddif command: Convert a PNM image to a DDIF image file. More information: <https://netpbm.sourceforge.net/doc/pnmtoddif.html>.

Solution

pnmtoddif — Convert a PNM image to a DDIF image file. More information: <https://netpbm.sourceforge.net/doc/pnmtoddif.html>.

Convert a PNM image to a DDIF image file:

pnmtoddif {{path/to/image.pnm}} > {{path/to/image.ddif}}

Explicitly specify the horizontal and vertical resolution of the output image:

pnmtoddif {{[-r|-resolution]}} {{horizontal_dpi}} {{vertical_dpi}} {{path/to/image.pnm}} > {{path/to/image.ddif}}

Code Snippets

Convert a PNM image to a DDIF image file

pnmtoddif {{path/to/image.pnm}} > {{path/to/image.ddif}}

Explicitly specify the horizontal and vertical resolution of the output image

pnmtoddif {{[-r|-resolution]}} {{horizontal_dpi}} {{vertical_dpi}} {{path/to/image.pnm}} > {{path/to/image.ddif}}

Context

tldr-pages: common/pnmtoddif

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