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Why convert EPUB to G3?
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 EPUB format
EPUB — Electronic Publication
EPUB is the international open standard for digital books and publications, maintained by the W3C. It is supported by virtually all e-readers (except Kindle) and provides reflowable text that adapts to any screen size, along with support for embedded fonts, images, and multimedia.
Common uses
- Digital books and novels
- Publishers distributing ebooks
- Academic and educational ebook publishing
- Distributing reports and long-form content
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
Related conversions
Other conversions available for EPUB and G3 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.