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cheatsheet-tldr/tldr/pnmrotate
2025-04-02 00:19:10 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# pnmrotate
> Rotate a PNM image.
> More information: <https://netpbm.sourceforge.net/doc/pnmrotate.html>.
- Rotate a PNM image by some angle (measured in degrees, counter-clockwise):
`pnmrotate {{angle}} {{path/to/input.pnm}} > {{path/to/output.pnm}}`
- Specify the background color exposed by rotating the input image:
`pnmrotate {{[-b|-background]}} {{color}} {{angle}} {{path/to/input.pnm}} > {{path/to/output.pnm}}`
- Disable anti-aliasing, improving performance but decreasing quality:
`pnmrotate {{[-n|-noantialias]}} {{angle}} {{path/to/input.pnm}} > {{path/to/output.pnm}}`