G3 vs PFM — Comparison & Free Converter
Fast, instant G3 (FAX) to PFM conversion. No signup required. Just drop your .g3 file and get .pfm in seconds.
Batch Settings
您是否遇到过这样的情况：手头一份G3格式的文件，却发现它在某些专业图像处理软件中显得有些“水土不服”？尤其是在需要精细调整图像深度、色彩空间，或是与某些三维渲染、游戏开发流程无缝对接时，G3的局限性就凸显出来了。将G3转换为PFM（Portable Float Map）格式，就好比为您的图像数据打开了一扇通往更高精度、更广阔应用领域的大门。PFM以其浮点数存储特性，能够保留图像中最丰富的色彩和亮度信息，这对于从事视觉设计、游戏美术、或者任何对图像质量有极致追求的朋友来说，无疑是提升工作效率和成果表现的关键一步。现在，就让我们一起轻松完成格式转换，让您的图像数据发挥出最大的潜力吧！
- 微信分享高清图
- 游戏材质高精度处理
- 三维渲染后期调色
在亚洲地区，尤其是游戏开发和视觉特效领域，PFM因其高动态范围（HDR）特性，常被用于存储和交换光照贴图或深度信息，以适应更复杂的渲染管线和创作需求。
About G3 (FAX) to PFM Conversion
G3 or PFM — which format should you use? The answer depends on your needs. Here's a quick breakdown.
G3 is a widely used file format. It has common platform support. PFM is a widely used file format. It has common platform support.
So when should you convert G3 to PFM? This conversion is ideal when you When you need a PFM file. This conversion helps you convert between formats quickly.
Converting G3 to PFM maintains high quality with CocoConvert's optimised encoder settings.
If you've decided PFM is the right choice, CocoConvert makes the conversion effortless. Upload your .g3 file, pick PFM, 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 G3 (FAX) to PFM
- 1
Choose your G3 file
Upload your .g3 file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to PFM
Select .pfm 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 PFM file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert G3 (FAX) to PFM
Your G3 file is decoded and re-encoded as PFM.
Your G3 file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in PFM format
The converted file is ready for download
Format Comparison
G3 (FAX)
.g3 file
| Extension | .g3 |
| MIME Type | image/g3fax |
| Category | Image |
PFM
.pfm file
| Extension | .pfm |
| MIME Type | image/x-pfm |
| Category | Image |
Should You Convert G3 (FAX) to PFM?
When to Convert
- ✓When you need a PFM file
Frequently Asked Questions
Should I use G3 or PFM?
It depends on your goal. G3 preserves full quality. PFM preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is PFM higher quality than G3?
Not necessarily. Converting G3 to PFM 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 G3 to PFM 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 G3 to PFM?
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 G3 to PFM?
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.