Convert Online between various File Formats
How to convert epub to rb?
Step 1. Use the Add files OR drag and drop button above and select one or more epub files from your computer or mobile device.
Step 2. Choose rb from the drop-down list above. You can select different formats for each uploaded file.
Step 3. Once you selected all output formats, click or tap the Start Conversion button or Convert near each individual epub file in the list.
Step 4. Wait for the conversion process to finish and download each resulting rb file or create a zip archive for all of them.
Electronic Publication (.epub)
EPUB is an e-book file format that uses the ".epub" file extension. The term is short for electronic publication and is sometimes styled ePub. EPUB is supported by many e-readers, and compatible software is available for most smartphones, tablets, and computers. EPUB is a technical standard published by the International Digital Publishing Forum (IDPF). It became an official standard of the IDPF in September 2007, superseding the older Open eBook standard.
Rocket eBook (.rb)
RB is the extension identified with the Rocket eBook from NuvoMedia. The original was simply called Rocket. RB is a container for holding Rocket eBook content. It can use DRM but the books being supplied today do not use it. The container typically contains an HTML file with the images in it and a pseudo-OPF (.info) file with all of the metadata or at least this is what it looks like after being converted.
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