PGM vs RGF — Comparison & Free Converter
Fast, instant PGM to RGF conversion. No signup required. Just drop your .pgm file and get .rgf in seconds.
Batch Settings
About PGM to RGF Conversion
PGM or RGF — which format should you use? The answer depends on your needs. Here's a quick breakdown.
PGM is a widely used file format. It has common platform support. RGF is a widely used file format. It has common platform support.
So when should you convert PGM to RGF? This conversion is ideal when you When you need a RGF file. This conversion helps you convert between formats quickly.
Converting PGM to RGF maintains high quality with CocoConvert's optimised encoder settings.
If you've decided RGF is the right choice, CocoConvert makes the conversion effortless. Upload your .pgm file, pick RGF, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert PGM to RGF
- 1
Choose your PGM file
Upload your .pgm file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to RGF
Select .rgf from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your RGF file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert PGM to RGF
Your PGM file is decoded and re-encoded as RGF.
Your PGM file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in RGF format
The converted file is ready for download
Format Comparison
PGM
.pgm file
| Extension | .pgm |
| MIME Type | image/x-portable-graymap |
| Category | Image |
RGF
.rgf file
| Extension | .rgf |
| MIME Type | image/x-rgf |
| Category | Image |
Should You Convert PGM to RGF?
When to Convert
- ✓When you need a RGF file
Frequently Asked Questions
Should I use PGM or RGF?
It depends on your goal. PGM preserves full quality. RGF preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is RGF higher quality than PGM?
Not necessarily. Converting PGM to RGF maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert PGM to RGF on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for PGM to RGF?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for PGM to RGF?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.