FAX to PFM — Format Comparison & Online Converter
Fast, instant FAX to PFM conversion. No signup required. Just drop your .fax file and get .pfm in seconds.
Batch Settings
About FAX to PFM Conversion
FAX and PFM are both image formats, but they differ in important ways. FAX is a widely used file format. PFM is a widely used file format.
When you convert FAX to PFM, the goal is to convert between formats quickly. Converting FAX to PFM maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your FAX file is decoded and re-encoded as PFM. The conversion involves 4 steps: (1) your fax file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in pfm format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a PFM file. For the opposite direction, CocoConvert also supports PFM to FAX conversion.
How to Convert FAX to PFM
- 1
Upload .fax file
Select your FAX file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .pfm
Set PFM as the output format. The converter uses optimal settings based on the FAX→PFM conversion profile.
- 3
Convert
The server-side engine decodes your FAX file and re-encodes it as PFM. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .pfm file. Multiple output files can be downloaded together.
What Happens When You Convert FAX to PFM
Your FAX file is decoded and re-encoded as PFM.
Your FAX 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
FAX
.fax file
| Extension | .fax |
| MIME Type | image/g3fax |
| Category | Image |
PFM
.pfm file
| Extension | .pfm |
| MIME Type | image/x-pfm |
| Category | Image |
Should You Convert FAX to PFM?
When to Convert
- ✓When you need a PFM file
Frequently Asked Questions
What is the difference between FAX and PFM?
FAX is a widely used file format. PFM is a widely used file format.
Does FAX to PFM conversion affect quality?
Converting FAX to PFM maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, FAX or PFM?
FAX is a common image format. PFM is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does FAX to PFM conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is FAX or PFM better for long-term storage?
Both formats use lossy compression, so consider keeping your original source file for long-term storage.
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