Bulk HEIF to PGM Converter Online — Free HD Quality
Drag and drop your multiple HEIF files into this 100% free online HEIF to PGM converter (.heif 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 HEIF files are removed from our servers right after. Also see:Quick PNG to TGA online converter.
Drop your HEIF files here to convert to PGM, or click to browse
Converts .heif to PGM (.pgm) in HD quality — bulk, free, no signup
Choose FilesHEIF vs PGM — File Format Comparison
See how HEIF and PGM compare across file extension, MIME type, compression, and feature support. Related:Queue HEIF to XBM conversions.
| Feature | HEIF | PGM |
|---|---|---|
| File Extension | .heif | .pgm |
| MIME Type | image/heif | image/x-portable-graymap |
| Compression Type | Lossy | Lossless |
| Transparency Support | No | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is HEIF Format?
High Efficiency Image Format for modern image compression.
- Compression: Lossy
- Transparency: Not supported
- Animation: Not supported
What Is PGM Format?
Portable Graymap format for grayscale images.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported