PhotoProc is now exif rotation sensitive. There is proper window sizing, histogram, and pixel value display in PhotoProc, a new ppmlevels tool for traditional level operations, a highlight expansion function in ppmhsy, an optimised pnmresample, and a better ppmtestimage. ppmhsy now has a better colour model: gamma correction + better Y value.
A new tool, pnmnormalise, was added for making photographed text printable. PhotoProc was improved with a better UI, bug fixes, and greater speed. Hue-specific saturation was added in ppmhsy. Some small bugfixes were made.