MobileRead Forums - View Single Post

maddz · 03-04-2026, 05:03 PM

OK, this is an odd one: I've been able to track down a CBR file of a document (derived from microfilm) which I want to OCR and convert to epub. It's 7 pages, one of which is an image to be used as a cover, the other 6 pages are PNG images of text.

What I'm after is a way to OCR the textual pages so they can be converted to an epub file. Calibre CBR > epub converts the pages as images, not text, which isn't much use to me as I want a reflowable document not a fixed format document. I can't seem to find a plug-in to do what I want, and the online converters aren't useful.

Does anyone have any ideas on how to handle this? If the worst comes to the worst, I can manually type the text, but I'd rather not have to do that...

03-04-2026, 05:03 PM	#1
maddz Wizard Posts: 1,463 Karma: 30087146 Join Date: Mar 2010 Location: UK Device: Kobo Forma, Icarus, iPad Mini 2, Kobo Touch, Google Nexus 7	Converting CBR PNG pages to epub OK, this is an odd one: I've been able to track down a CBR file of a document (derived from microfilm) which I want to OCR and convert to epub. It's 7 pages, one of which is an image to be used as a cover, the other 6 pages are PNG images of text. What I'm after is a way to OCR the textual pages so they can be converted to an epub file. Calibre CBR > epub converts the pages as images, not text, which isn't much use to me as I want a reflowable document not a fixed format document. I can't seem to find a plug-in to do what I want, and the online converters aren't useful. Does anyone have any ideas on how to handle this? If the worst comes to the worst, I can manually type the text, but I'd rather not have to do that...