PFM to G3 for Image Workflows
Fast, instant PFM to G3 (FAX) conversion. No signup required. Just drop your .pfm file and get .g3 in seconds.
Batch Settings
Vous manipulez des fichiers d'images et la conversion de PFM (Portable FloatMap) vers le format G3 (Group 3 Fax) est devenue une nécessité? Que ce soit pour archiver des documents techniques, préparer des images pour des systèmes de télécopie plus anciens ou optimiser des graphiques pour des applications spécifiques, cette transition demande une attention particulière. Le format PFM, souvent utilisé pour les images à haute dynamique (HDR) et les rendus 3D, stocke des informations de couleurs et de luminosité très détaillées. Le G3, quant à lui, est un format binaire optimisé pour la transmission de fax, privilégiant la compression et la compatibilité sur la richesse visuelle. Notre outil vous accompagne dans ce processus délicat, assurant une conversion fidèle tout en respectant les spécificités de chaque format.
- Archivage de plans techniques (Belgique)
- Publication académique d'images scientifiques (Suisse)
- Préparation d'ébauches pour l'impression (Québec)
En France, la compatibilité G3 reste pertinente pour certains échanges inter-entreprises ou avec des administrations utilisant des infrastructures de télécopie classiques, malgré l'essor des solutions numériques.
About PFM to G3 (FAX) Conversion
Whether you're one of the many photographers, designers, and content creators who work with PFM files daily, there comes a time when you need G3 instead. PFM is a widely used file format.
Here's a typical scenario: you receive a .pfm file but your project, platform, or client requires .g3. G3 is a widely used file format. Rather than searching for desktop software or wrestling with command-line tools, you can convert PFM to G3 online in seconds with CocoConvert.
This conversion is ideal when you When you need a G3 file. The conversion helps you convert between formats quickly.
Converting PFM to G3 maintains high quality with CocoConvert's optimised encoder settings.
Behind the scenes, CocoConvert uses industry-standard tools — FFmpeg for audio and video, Sharp for images, qpdf for documents. Your file is uploaded securely (TLS encryption), processed on isolated servers in Germany, and auto-deleted within 24 hours. No account, no watermark, no hidden fees.
Power users can batch convert up to 100 files simultaneously with a Pro subscription, making it practical for production workflows.
How to Convert PFM to G3 (FAX)
- 1
Drop your file
Drag your .pfm file onto the converter. Need to process many files? Add up to 5 at once (100 for Pro).
- 2
Set output to G3
Pick G3 from the format list. The converter automatically tunes settings for the PFM→G3 pair.
- 3
Hit Convert
Processing happens server-side — your browser stays responsive. Most image files convert in under 10 seconds.
- 4
Download and use
Your .g3 file is ready to plug into your workflow. Download it or share the link (expires in 24 hours).
What Happens When You Convert PFM to G3 (FAX)
Your PFM file is decoded and re-encoded as G3.
Your PFM file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in G3 format
The converted file is ready for download
Format Comparison
PFM
.pfm file
| Extension | .pfm |
| MIME Type | image/x-pfm |
| Category | Image |
G3 (FAX)
.g3 file
| Extension | .g3 |
| MIME Type | image/g3fax |
| Category | Image |
Should You Convert PFM to G3 (FAX)?
When to Convert
- ✓When you need a G3 file
Frequently Asked Questions
Who needs to convert PFM to G3?
This conversion is commonly used by photographers, designers, and content creators. Typical reasons include convert between formats quickly and ensuring compatibility with downstream tools or platforms.
Can I convert PFM to G3 without losing quality?
Converting PFM to G3 maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert PFM to G3?
No. CocoConvert runs entirely in your browser — no downloads, no plugins. It works on macOS, Windows, Linux, iOS, and Android.
How many PFM files can I convert at once?
Free users can convert up to 5 files per hour. Pro subscribers get 100 files per hour with larger size limits (5 GB per file). Business API users can integrate batch conversion directly into their tools.
Is there an API for PFM to G3 conversion?
Yes. CocoConvert offers a Business API for automated conversions. It supports all the same format pairs available in the web interface, including PFM to G3.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.