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Old 10-03-2009, 03:36 PM   #1
DavidJD
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PDF to Mobi conversion problem

I've been using Calibre for a while to convert files to Mobi format for my Kindle 2, and have had pretty good luck so far with PDF files. But just now I used Calibre 0.6.13 to convert a text-based PDF file, and the output was mostly a Document Outline containing a long list of BMP files (but not the text).

I assume the PDF is text based because I can select text in a PDF reader and copy and paste it to a text editor; it is a rather large file, though, and the table of contents is the same list of BMP files.

What am I missing here? Is the PDF reader (Foxit Reader) doing OCR on the fly? Does Calibre not do that?
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Old 10-03-2009, 04:56 PM   #2
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hard to say without being able to see the file in question. Can you extract a couple of pages and post them? calibre definitely doesn't do OCR and I doubt Foxit does either.
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Old 10-03-2009, 05:19 PM   #3
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including extract

I used PDF Split and Merge to extract three pages (file attached). In Foxit I can see the three pages, but as converted by Calibre to Mobi, I can see only the first page (16) and then a list of BMP files.
Attached Files
File Type: pdf zinn_extract.pdf (130.1 KB, 347 views)
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Old 10-03-2009, 05:27 PM   #4
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That's an image based PDF
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Old 10-04-2009, 06:15 AM   #5
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It could have a text layer under the image, though, and that's why it allows text selecting
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Old 10-04-2009, 12:14 PM   #6
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So would it be possible for Calibre to grab the text layer only?
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Old 10-04-2009, 12:27 PM   #7
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Not at the moment. When my rewrite of the PDF conversion engine is done perhaps.
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