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Old 02-13-2010, 11:46 AM   #1
var89
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PDF to EPUB
Hi,

I'm trying to convert an ebook from PDF into EPUB format using Calibre.
But the conversion is getting hung up. I waited for 20+ minutes but it did not even progressed to more than 1%.

I did though successfully converted a pdf, which means there is no problem with my system.

What could be this problem i don't understand.
Kindly give some inputs.
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Old 02-13-2010, 08:49 PM   #2
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How big is the pdf file ? Are you sure it is OCR pdf ?
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Old 02-14-2010, 05:04 AM   #3
var89
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Originally Posted by robertpolson View Post
How big is the pdf file ? Are you sure it is OCR pdf ?
I'm not really sure whether its a OCR file. How do i check this. The entire computer gets hung up becoz of that.
Its 24 MB.
I have Adobe Pro also. Can it be of any help here?.
Last edited by var89; 02-14-2010 at 05:06 AM.
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Old 02-14-2010, 11:33 AM   #4
robertpolson
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robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.robertpolson solves Fermat’s last theorem while doing the crossword.
 
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Open the pdf file, highlight all the text and copy it into another program like open office which can save the file into HTML. Then import html to calibre and convert to epub.

OCR means you can copy the text rather than just look at the scanned image.
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Old 02-14-2010, 11:46 AM   #5
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Hmmm. I didn't even know it would do that.
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Old 02-14-2010, 12:07 PM   #6
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It's the difference between a text based pdf and an image based pdf. If it's been scanned, but not OCR'd, it'll be image based. If it started life on the computer, like from Word, etc..., then it'll likely be text based, thus you can do a copy and paste. Alternatively, it could have been scanned and OCR'd and that would be text based as well.
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Old 02-14-2010, 01:04 PM   #7
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Quote:
Originally Posted by kennyc View Post
Hmmm. I didn't even know it would do that.
Yes it works, although the result can be pretty ugly and need a lot of cleanup.

Every line ends with LF or CRLF
Headers, footers and hard hyphenation, oh my.

I use Notepad++ on windows to un-wrap lines. It is still tedious to clean up and it is best to have the original on another screen or hard copy.
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Old 02-14-2010, 01:07 PM   #8
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Quote:
Originally Posted by theducks View Post
Yes it works, although the result can be pretty ugly and need a lot of cleanup.

Every line ends with LF or CRLF
Headers, footers and hard hyphenation, oh my.

I use Notepad++ on windows to un-wrap lines. It is still tedious to clean up and it is best to have the original on another screen or hard copy.
I try to avoid PDFs if at all possible, but I ended up quite by accident with one collection of short stories I wish was in epub or mobi. Not that big a deal though.

Thanks ducks!
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