CartaPGM is a plug-in for Photoshop on Macintosh that reads and writes files in the Portable Gray Map (PGM) format.
CartaPGM writes the following formats:
CartaPGM reads the following formats:
You can download CartaPGM here for free.
Decompress the ZIP file and drag the plug-in to the Plug-Ins folder in the Photoshop application folder.
Once the plug-in is installed, open PGM, PBM or PPM files with the normal File - Open menu command. To write files in the PGM format, use File - Save and select Portable Gray Map (PGM) in the Format menu.
CartPGM only runs on Macintosh.
CartaPGM is based on Pascal Lamboley's pbm plug-in (firstname.lastname@example.org). He generously shared essential code for this project. You can download his plug-in here. It runs only in classic mode - but unlike CartaPGM, it can write files in the following formats: PPM (24-bit RGB), PBM (1-bit black and white), and PGM 8 bit binary. Cartagena was developed by Bernhard Jenny (email@example.com).
CartaPGM is copyrighted by Pascal Lamboley and Bernhard Jenny. CartaPGM may be freely distributed, as long as no party makes profit from its distribution. But we hope you can make a profit on it's use.
If you cannot live without it, send a postcard or some CDs with classical music to: