Calibre does not natively support DRM removal, but may allow DRM removal after installing plug-ins with such a function. Conversion and editing are easily applied to appropriately licensed digital books, but commercially purchased e-books may need to have digital rights management (DRM) restrictions removed. Most e-book formats can be edited, for example, by changing the font, font size, margins, and metadata, and by adding an auto-generated table of contents.
Features Ĭalibre supports many file formats and reading devices. In 2008, the program, for which a graphical user interface was developed, was renamed "calibre", displayed in all lowercase. With support from the MobileRead forums, Goyal reverse-engineered the proprietary Broad Band eBook ( BBeB) file format.
On 31 October 2006, when Sony introduced its PRS-500 e-reader, Kovid Goyal started developing libprs500, aiming mainly to enable use of the PRS-500 formats on Linux. Books in other formats like MOBI must first be converted to those formats, if they are to be edited. Editing books is supported for EPUB and AZW3 formats. Calibre supports organizing existing e-books into virtual libraries, displaying, editing, creating and converting e-books, as well as syncing e-books with a variety of e-readers. I suspect that if you changed the extension of a a kepub to epub and tried a conversion in calibre, you would see the results described here and in your thread.Calibre ( / ˈ k æ l ɪ b ər/, stylised calibre) is a cross-platform free and open-source suite of e-book software. They also seem to have some code which I assume is Javascript. As the OP here was originally reading the book in the Kobo desktop application, the format being used was definitely a kepub.įrom a little looking at kepub's, some are just ePubs, but most have the text sections encrypted. If you look at one of these on Kobo Touch ereader, it will be listed with the type "KOBO EPUB" and the file extension is "kepub" under Windows. Just the cover followed by empty pages (in the resulting PDF).Īctually, Kobo does have a proprietary version of ePub. I had the same problem though, in trying to convert one to PDF with Calibre. They sell books in completely standard Epub format, which will read well on any Epub reader, including that of Calibre. Kobo does not have a proprietary version of EPUB.
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