Bulk PNG to PGM Converter Online — Free HD Quality
Drag and drop your multiple PNG files into this 100% free online PNG to PGM converter (.png 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 PNG files are removed from our servers right after. Also see:Free online HEIC to PDF tool.
Drop your PNG files here to convert to PGM, or click to browse
Converts .png to PGM (.pgm) in HD quality — bulk, free, no signup
Choose FilesPNG vs PGM — File Format Comparison
See how PNG and PGM compare across file extension, MIME type, compression, and feature support. Related:Mass WEBP to CUR conversion.
| Feature | PNG | PGM |
|---|---|---|
| File Extension | .png | .pgm |
| MIME Type | image/png | image/x-portable-graymap |
| Compression Type | Lossless | Lossless |
| Transparency Support | Yes | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is PNG Format?
Portable Network Graphics with lossless compression and transparency. See also:CR2 to AVIF conversion.
- Compression: Lossless
- Transparency: Supported
- Animation: Not supported
What Is PGM Format?
Portable Graymap format for grayscale images.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported