Bulk PNG to PGM Converter Online — Free HD Quality
Drag and drop your multiple PNG files into this 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 — your original PNG files are removed from our servers right after.
To:
85%
Drop images here or click to browse
PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
PNG vs PGM — File Format Comparison
| 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.
- 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
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