Quote:
Originally Posted by Difermo
The books I need to put is for civil engineering. So there is a lot of math trigonometry, equations, integrals, lots of diagrams, tables.
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I suspect these are just PDF scans of books?
Your best bet would probably be reading this as a PDF on a larger screen (tablet/monitor).
Depending on the PDF, you may be able to do some cropping to make it a bit easier to read on your device. For example, using a tool like k2pdfopt:
https://www.mobileread.com/forums/sh...d.php?t=144711
but most of the time it just might not be possible to shrink a very large and complex 8.5"x11" page into a smaller screen.
Converting this type of complex material to a proper ebook is EXTREMELY labor intensive... and if the publisher doesn't release an ebook directly from the source material... it probably wouldn't be worth the time invested for a single individual to OCR (easily tens/hundreds of hours).
The more complex the layout (multi-column, lots of footnotes, tables, figures, captions, equations, [...]) the harder the books are to convert using OCR + the more manual intervention would be needed to fix all the broken formatting.
Quote:
Originally Posted by Difermo
I need to put some books in my eReader. It is kindle paperwhite. But if mobi or azw3 can not suport that i'm ready to buy some epub reader.
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Dedicated ereaders
can read PDFs... but the experience is typically very poor: slow/sluggish page turns, having to pan/scan, not being able to easily highlight text or take notes, can't resize text, etc. etc.
For example, here is The Digital Reader showing off PDFs on a Kobo Aura One (Kindles/Nooks/others are similar):
http://the-digital-reader.com/2016/0...just-no-video/
Quote:
Originally Posted by Difermo
I'm sorry for openin new thread if one is already there. I searched on google and all what i found is to old. Date is 2012 or 2009. And I gess a lot have change since then.
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The largest change in this kind of material is probably MathML in EPUB3.
Equations/Formulas? Each equation is going to have to be included as bitmap images (or SVG or MathML).
Each and every equation would require laborious double-checking to make sure it is correct and require some serious markup.
The only program/engine I know of that handles OCRing Formulas is InftyReader:
http://www.sciaccess.net/en/InftyReader/
and that costs $800+.
Side Note: Back in 2013 I wrote a topic, "Tutorial: Formulas to PNG", where I sort of show off one method of digitizing equations (using LibreOffice Math):
https://www.mobileread.com/forums/sh...d.php?t=223254
I have used this to recreate formulas in books that had <50 equations... now I tend to prefer using LaTeX as a middleman... but it STILL requires a massive amount of manual work per equation. I shudder to think how long it would take working on a book that is as full as your example pages.