RB to G3 Converter
Convert your rb files to g3 online & free
How to convert rb to g3
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to g3"
Choose g3 or any other format you need as a result (more than 200 formats supported)
Download your g3
Let the file convert and you can download your g3 file right afterwards
Was developed for the first mass-produced e-book reader – Rocket eBook. The format is written in Ruby. RB files are containers holding the entire content for a Rocket eBook device. It has DRM protection capability which is not used in the books published at present due to the format’s lack of popularity.
Group 3 FAX
The G3 format is used to compress image files in TIFF format when sending faxes. The compression algorithm allows for the use of a standard 10-times compression, which can be increased. It is used to remove excess image data, which makes it possible to reduce the size of the image and speed up delivery.