Bulk PBM to PGM Converter Online — Free HD Quality
Drag and drop your multiple PBM files into this 100% free online PBM to PGM converter (.pbm to .pgm), and click the Convert button to bulk convert them to PGM format in HD quality. Use the quality slider to fine-tune your PGM output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original PBM files are removed from our servers right after. Also see:Online PCD to TIFF converter tool.
Drop your PBM files here to convert to PGM, or click to browse
Converts .pbm to PGM (.pgm) in HD quality — bulk, free, no signup
Choose FilesPBM vs PGM — File Format Comparison
See how PBM and PGM compare across file extension, MIME type, compression, and feature support. Related:Change PBM files to SGI.
| Feature | PBM | PGM |
|---|---|---|
| File Extension | .pbm | .pgm |
| MIME Type | image/x-portable-bitmap | image/x-portable-graymap |
| Compression Type | Lossless | Lossless |
| Transparency Support | No | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is PBM Format?
Portable Bitmap format for monochrome images. See also:How to convert PBM to DDS online?.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported
What Is PGM Format?
Portable Graymap format for grayscale images.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported