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Old 09-19-2011, 02:58 PM   #1
plamtrue
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pdf to mobi: debugging with calibre
Hi,
I'm new to mobile reading. Just got my kindle. And I've been using Calibre. And I'm an OS X user. And there sure are a lot of PDF documents that are giving me trouble.

Currently I'm trying to convert a 39MB PDF (which is only 325 pages btw, but apparently scanned at 600dpi) and Calibre has been working for over an hour. Thus far I've tried to convert about 5 PDF documents and all have failed, resulting in nonsense text, so I'm not feeling very confident about what is happening. I know very little about PDF and conversion, but I am very interested in learning more, and I'm capable of using command-line UNIX tools, and understanding regex, and even some LaTeX.

What I'm looking to find out is if Calibre (or another tool) can:
A) Tell me what's going on inside a given PDF document. It being a container format, what is in there?
B) Convert a small portion, a page, the table of contents, whatever, for debugging purposes, so I can have a clue about what the hell is happening without waiting hours.
C) Convert a pdf to a smaller resolution pdf, maybe, so I can get under the 25MB attachment limit on my email.

After a brief search on this forum I found a few promising leads on converting PDF, but none on learning more about how to debug. I'll keep looking of course, but I'm hoping someone here can point me in the right direction.


Cheers,
PLAMTRUE
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Old 09-19-2011, 03:11 PM   #2
HarryT
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A scanned PDF document does not contain any text; Calibre can do nothing with it. You need to use an OCR program to convert it to text.
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Old 09-19-2011, 06:47 PM   #3
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Hi PLAMTRUE and welcome to MobileRead
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Old 09-20-2011, 01:18 AM   #4
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Hello and welcome to MR!

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Old 09-20-2011, 05:57 PM   #5
Gunnerp245
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Welcome to Mobileread!

calibre creator, Kovid Goyal, is extremely responsive in the calibre forums , as are all the calibre developers! If you haven't already, visiting there would provide some assistance.

But be forewarned PDF is a terrible format to convert from see 'Read this before Posting PDF Questions' thread.
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Old 09-28-2011, 10:10 PM   #6
plamtrue
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Hi, everyone who responded! And thanks! I will continue searching for answers and stuff.
Last edited by plamtrue; 09-28-2011 at 10:15 PM. Reason: didn't post under the correct user.
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Old 09-30-2011, 04:43 PM   #7
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