3FR to RB Converter
Convert your 3fr files to rb online & free
How to convert 3fr to rb
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to rb"
Choose rb or any other format you need as a result (more than 200 formats supported)
Download your rb
Let the file convert and you can download your rb file right afterwards
This format is used for storing photos taken with Swedish Hasselblad cameras. It has a RAW image file structure. It is saved without applying automatic corrections. Photographers can edit the 3FR photos by changing the white balance, color correction, and other parameters without sacrificing image quality.
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.