pnmshear
Shear a PNM image. More information: https://netpbm.sourceforge.net/doc/pnmshear.html.
- Shear a PNM image by the specified angle:
pnmshear angle path/to/input.pnm > path/to/output.pnm
- Specify the color of the background in the sheared image:
pnmshear -background blue angle path/to/input.pnm > path/to/output.pnm
- Do not perform anti-aliasing:
pnmshear -noantialias angle path/to/input.pnm > path/to/output.pnm