Bulk HDR to PGM Converter Online — Free HD Quality
Drag and drop your multiple HDR files into this free online HDR to PGM converter (.hdr 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 HDR 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
HDR vs PGM — File Format Comparison
| Feature | HDR | PGM |
|---|---|---|
| File Extension | .hdr | .pgm |
| MIME Type | image/vnd.radiance | image/x-portable-graymap |
| Compression Type | Lossless | Lossless |
| Transparency Support | No | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is HDR Format?
Radiance HDR format for high dynamic range images.
- 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
Related Converters
- Mass 3GA to PCX conversion
- Online AC3 to M4R converter tool
- Convert multiple ARW to PPM
- Process multiple ICO to JPG files
- Online IIQ to DDS converter tool
- Switch KDC to BMP format
- Convert MOS to XBM
- Save NEF as TGA
- Convert NRW files to WebP in queue
- Mass PEF to PBM conversion
- PTX to XBM converter
- Free RAF to JXL - no account needed
- Online Raw Audio to ICO converter tool
- How to batch convert X3F to WBMP?
- See all HDR conversions
- See all PGM conversions
- Free Image converter tools
- Browse all converters