RB to JBG Converter
Convert your rb files to jbg online & free
How to convert rb to jbg
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to jbg"
Choose jbg or any other format you need as a result (more than 200 formats supported)
Download your jbg
Let the file convert and you can download your jbg 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.
Image JBIG 1-bit Raster
JBG is a lossless format used to store both black and white, and color images. It was developed by JBIG (Joint Bi-level Image Experts Group) for compressing pictures to send by fax but can also be used quite effectively on other images. Moreover, it offers better compression than the earlier G3 and G4 standards.