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Home / [Feature Request] Epub 3 support (Fixed layout epub files)


Any chance that proper epub 3 support will be added now the backwards compatibility issues have been fixed in epub 3.2? Support for fixed layout and such?

Thank you, absolutely adore the reader!


A switch from custom code to MuPDF (the engine used currently for PDFs) for EPUB display as well is planned eventually. AFAIK MuPDF has very limited support for EPUB 3 files. You can test the latest version with your EPUBs and if it works then great, otherwise I’d suggest you file a bug so that the MuPDF devs can hopefully fix the issues before Sumatra makes the switch in future.