FAX images store scanned pages using Group 3/4 compression, the black-and-white standard behind fax machines and document imaging.
FAX files open in fax and TIFF viewers; convert to TIFF/PDF for normal use.
Share, post and embed pictures across sites and apps.
Work with the format in editors like Photoshop and GIMP.
Keep memories and assets in a widely-readable form.
| ✔ Strengths | ✖ Limitations |
|---|---|
| Purpose-built for its niche | No transparency support |
| Limited support — may need converting |
Remove the background from FAX images, upscale to 4K, or generate new visuals with SharkFoto AI.
FAX images store scanned pages using Group 3/4 compression, the black-and-white standard behind fax machines and document imaging.
FAX files open in fax and TIFF viewers; convert to TIFF/PDF for normal use.
FAX is optimised for its specific use rather than strictly lossless storage.
Use SharkFoto's free tools — upload your FAX file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.
No — FAX doesn't store transparency; convert to PNG or WEBP if you need it.