tldr/pages/common/pnmrotate.md

572 B

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 -background {{color}} {{angle}} {{path/to/input.pnm}} > {{path/to/output.pnm}}

  • Disable anti-aliasing, improving performance but decreasing quality:

pnmrotate -noantialias {{angle}} {{path/to/input.pnm}} > {{path/to/output.pnm}}