GIF to G4 Converter
Convert GIF images to Group 4 fax compression online
Efficient Fax Encoding
Group 4 achieves better compression than Group 3 on most documents — smaller files for archival, storage, and transmission.
Enterprise Document Standard
G4 is the standard compression in enterprise scanning, document management, and TIFF/F archives worldwide.
Online Processing
No fax or scanning tools needed. Convertio encodes the G4 file on its servers — upload the GIF and download the result.
How to convert GIF to G4
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose g4 or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your g4 file right afterwards
About formats
Frequently Asked Questions
Group 4 compression is more efficient than Group 3 — producing smaller fax files for document archival, TIFF/F embedding, and enterprise scanning systems.
Document management systems, enterprise scanners, TIFF/F archives, and fax infrastructure use Group 4 encoding for maximum bi-level compression.
G4 uses two-dimensional compression (referencing adjacent lines) while G3 is primarily one-dimensional — G4 achieves better ratios on most documents.
Yes — Group 4, like Group 3, encodes bi-level (black and white) images. Color from the GIF is converted to a monochrome threshold.
Yes — Group 4 compression is fully lossless. The original bi-level pixel data is preserved exactly in the compressed output.