- Extension
- .rb
- .rgbo
- Format
- Text
- Category
- Ebook
- Other
- Developer
- NuvoMedia
- Adobe Systems
- Description
- RB is an eBook file format that was developed by NuvoMedia. It was first used in Nuvo Media’s Rocket eBook device. It contains the contents of the book in HTML form.
- Format for representing colors in the three primary colors (red, green and blue), each of which has 255 gradations. In contrast to the standard RGB, it allows you to change the transparency of the entire image using the opacity parameter.
- MIME Type
- application/x-rocketebook
- image/x-rgbo
