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Why convert G3 to PBM?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the G3 format
G3 — CCITT Group 3 FAX
G3 is a monochrome image format defined by the CCITT (ITU-T) standard for Group 3 fax transmission. It encodes pages as compressed bitstreams using Modified Huffman (MH) or Modified READ (MR) compression, designed to minimize transmission time over telephone lines.
Common uses
- Fax machine page storage and archiving
- Converting legacy fax images to PDF or TIFF
- Legal and medical document fax archives
- Telephone-transmitted document recovery
About the PBM format
PBM — Portable Bitmap
PBM is the monochrome (black and white) member of the Netpbm family of portable image formats. It stores each pixel as a single bit, making it the simplest possible image format. PBM files can be stored as plain ASCII text or compact binary, useful for scripting and tools.
Common uses
- Monochrome image processing and analysis
- Fax image storage and conversion
- Scripting and command-line image workflows
- Intermediate format in Netpbm pipelines
Related conversions
Other conversions available for G3 and PBM files
Frequently asked questions
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.