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