PGM, part of the Netpbm family from the late 1980s, stores grayscale data completely uncompressed, while PCX, dating back to ZSoft's PC Paintbrush in 1985, applies RLE (run-length encoding) compression that works particularly well on images with large flat areas. Converting PGM to PCX is mainly about compatibility with legacy software or older imaging tools that specifically expect PCX rather than PGM as input.
Since PCX applies at least some compression while PGM doesn't, expect the converted file to typically be smaller for grayscale content with flat regions, though detailed images may not compress as efficiently.
- Install Turbo Batch Image Converter Pro on your Windows PC.
- Open the app and select Batch Mode for multiple files, or Individual Mode for a single PGM.
- Drag your PGM file or folder into the app window, enabling recursive folder scanning if needed.
- Set the "From" format to PGM and the "To" format to PCX.
- Click Convert. PCX files are written to the output folder, fully offline.
- 100% offline — your research and pipeline output is never uploaded anywhere
- Produces standard PCX files for legacy and specialized software compatibility
- Bulk conversion of entire folders, including sub-folders, in one click
- Multi-core processing for fast handling of large batches
- Option to delete original PGM files automatically after conversion
- No recurring subscription or hidden upload limits
Is PCX still used today?
It's largely been replaced by more modern formats for everyday use, but some legacy software, older printing systems, and specialized industrial or scientific imaging tools still rely on PCX support.
Will my PCX file size differ much from the original PGM?
Probably smaller for grayscale content with flat regions, since PCX's RLE compression handles that kind of data efficiently, similar to how compactly some grayscale images already compress.
Can I batch-convert a whole folder of PGM files to PCX?
Yes, Batch Mode handles entire folders, including nested sub-folders, in a single conversion run.
Ready to convert your images offline, in bulk, with full privacy?