tif22pnm is a command line utility that converts between TIFF sampled images and PNM images (both directions), using the libtiff library, but not using NetPBM. tif22pnm is similar to tifftopnm utility in the NetPBM distribution, but tif22pnm handles a wider range of TIFF files and it is able to output the alpha channel as a PBM or PGM file. png22pnm, a converter from PNG to PNM is also bundled into the distribution.
tif22pnm is a command line utility that converts between TIFF sampled images and PNM images (both directions), using the libtiff library, but not using NetPBM. tif22pnm is similar to tifftopnm utility in the NetPBM distribution, but tif22pnm handles a wider range of TIFF files and it is able to output the alpha channel as a PBM or PGM file. png22pnm, a converter from PNG to PNM is also bundled into the distribution.
To install tif22pnm, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install tif22pnm
To see what files were installed by tif22pnm, run:
port contents tif22pnm
To later upgrade tif22pnm, run:
sudo port selfupdate && sudo port upgrade tif22pnm
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