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Portable Graymap (Netpbm grayscale image) · Free online file viewer
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What is a .PGM file?
A PGM file is a Portable Graymap — a simple, uncompressed grayscale image from the Netpbm family, created by Jef Poskanzer in 1988. Open it free with GIMP, IrfanView or XnView on Windows; Preview or GIMP on macOS; GIMP or Netpbm on Linux. To share it, convert to PNG (lossless) or JPG.
- Full name
- Portable Graymap (Netpbm grayscale image)
- Category
- Raster Image Files
- Type
- Uncompressed Netpbm raster grayscale bitmap; ASCII (P2) or raw binary (P5) variant
- MIME
- image/x-portable-graymap
- Developer
- Jef Poskanzer (Pbmplus / Netpbm project)