pnmrotate Command Examples
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}}