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Old 09-24-2010, 01:19 PM   #1
auburn1975
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Q: multi-column PDF to single column mobi format converstion

Is there a way using Calibre to convert a multi-column PDF file to a single column mobi format for use on a kindle3?
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Old 09-24-2010, 01:27 PM   #2
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Don't know about calibre, but came across this the other day. Played with it once and it seemed OK.

http://code.google.com/p/papercrop/
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Old 09-24-2010, 01:29 PM   #3
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Not really. The current pdf engine doesn't support multi-column. A new pdf engine is in the works that will support multi-column. You can access it today via the command line by using the ebook-convert command with the argument --new-pdf-engine. It won't fully convert the book, but it will turn a multi-column pdf into a single column html file if you also specify a debug output location using the -v argument.

That said the html file it produces today is pretty rough and will definitely need further editing - it may not be worth it to you.
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Old 09-25-2010, 07:46 AM   #4
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Well, I tried many diffident approaches but it was a no go. It degraded the font quality and did not effectively handle the embedded 2-columns per page format.
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Old 09-25-2010, 02:37 PM   #5
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I'm using "Stanza Desktop" to convert Perry Rhodan 2-column PDFs to ePub. Works well for most of the old ones. Buying the new series as epub.
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Old 08-13-2011, 09:13 AM   #6
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k2pdfopt

You might also try k2pdfopt for converting multiple column PDFs for better readability on small e-book readers.

http://willus.com/archive/#kindle
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Old 01-28-2012, 05:50 PM   #7
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k2pdfopt looks interesting, but can it convert to vectorial pdf? So far the result I got were bitmap, so I can't process it to calibre after that, to get an epub
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Old 01-28-2012, 06:11 PM   #8
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k2pdfopt output

Quote:
Originally Posted by farvardin View Post
k2pdfopt looks interesting, but can it convert to vectorial pdf? So far the result I got were bitmap, so I can't process it to calibre after that, to get an epub
The current version of k2pdfopt only outputs rasterized pdf, which most ebooks can read directly.
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