無料オンラインPDFからRBへのコンバーター

PDF is an electronic document format designed by Adobe Systems using some language features PostScript. The official program for viewing documents in this format, Adobe Reader. Most often, PDF-file is a combination of text with raster and vector graphics and text forms, scripts written in JavaScript and other types of items.

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.