pnmscalefixed

Scale a PNM file quickly with possibly reduced quality. See also: pamscale. More information: https://netpbm.sourceforge.net/doc/pnmscalefixed.html.

• Scale an image such that the result has the specified dimensions:

pnmscalefixed -width {{width}} -height {{height}} {{path/to/input.pnm}} > {{path/to/output.pnm}}

• Scale an image such that the result has the specified width, keeping the aspect ratio:

pnmscalefixed -width {{width}} {{path/to/input.pnm}} > {{path/to/output.pnm}}

• Scale an image such that its width and height is changed by the specified factors:

pnmscalefixed -xscale {{x_factor}} -yscale {{y_factor}} {{path/to/input.pnm}} > {{path/to/output.pnm}}