How to convert PGM to EXR
To convert PGM to EXR, upload your PGM file, choose EXR as the output format and press Convert. The finished EXR file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter changes PGM images into EXR files in seconds, with no software to install and no watermark. You can convert several files at once, resize them and choose the quality for formats that support it. Metadata such as location tags is removed from the output for privacy.
Reasons to switch from PGM to EXR
- Huge dynamic range
- Lossless floating-point colour
- Standard in film pipelines
- Works with: Blender, Nuke, After Effects, Photoshop and Houdini
What to expect from this conversion
- EXR can be saved lossy or lossless. Quality 100 gives a lossless result where the format supports it, and lower values give smaller files.
- EXR stores light in linear floating-point values, so your pixels are converted from sRGB to linear. The result looks the same in an HDR-aware viewer but does not gain real dynamic range.
- Browsers do not display EXR files, so use it in editors, print workflows or development tools rather than on a web page.
PGM vs EXR
| Property | PGM | EXR |
|---|---|---|
| Full name | Portable Graymap | OpenEXR |
| Released | 1988, Jef Poskanzer (Netpbm) | 2003, Industrial Light & Magic |
| Compression | None (uncompressed) | Lossy or lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Bit depth | 8 or 16-bit gray | 16 or 32-bit float |
| Shown in browsers | No | No |
| Best for | grayscale processing; image-analysis research | VFX and compositing; HDR renders |
Steps to convert PGM to EXR
- Drop your PGM image file onto the converter, or click to choose it.
- Check that EXR is selected as the target and adjust the options if you want.
- Press Convert, then download your new EXR file when it finishes.
Tips for the best result
- Use quality 80 to 90 for photos: it is visually close to the original at a much smaller size.
- Set a width if the image will be shown on a small screen, which also reduces the file size.
- Choose a background colour before converting transparent images to a format without transparency.
Frequently asked questions
How do I convert PGM to EXR?
Drop your PGM files on the converter, confirm that EXR is the target and press Convert. Download each file or the whole batch as a ZIP.
Is the PGM to EXR converter free?
Yes. It is free with no watermark, no sign-up and no limit on how many images you convert. The site is supported by ads.
Does converting PGM to EXR reduce quality?
EXR can be saved lossy or lossless. Quality 100 gives a lossless result where the format supports it, and lower values give smaller files. The quality slider only affects formats that use lossy compression.
Will transparency be kept when I convert PGM to EXR?
PGM images do not contain transparency, so there is nothing to lose. EXR supports it if you edit the image later.
Which programs open EXR files?
EXR files open in Blender, Nuke, After Effects, Photoshop and Houdini.
How many images can I convert at once?
Up to 20 images per batch, each up to 60 MB. Files are deleted from the server about 30 minutes after conversion.