PDF to EPUB conversion

XayneP_G · 07-29-2012, 11:29 PM

This problem has probably been addressed elsewhere, I suspect it has an easy solution, however I have very little experience with coding and at this point im stuck.

I used calibre to convert a PDF file to EPUB. The resulting file had paragraph breaks (<P>) where each line of text ended on the PDF. This means a lot of blank lines through the ebook I was trying to read.

I found I was able to delete the lines manually with Sigil, however it would be a very time consuming process to go through the entire text. As the superfluous paragraph breaks are indistinguishable from the genuine ones, a simple find and replace in the code is not an option either. Is there an easy solution to this problem?

theducks · 07-30-2012, 02:12 AM

Quote:

Originally Posted by XayneP_G

This problem has probably been addressed elsewhere, I suspect it has an easy solution, however I have very little experience with coding and at this point im stuck.

I used calibre to convert a PDF file to EPUB. The resulting file had paragraph breaks (<P>) where each line of text ended on the PDF. This means a lot of blank lines through the ebook I was trying to read.

I found I was able to delete the lines manually with Sigil, however it would be a very time consuming process to go through the entire text. As the superfluous paragraph breaks are indistinguishable from the genuine ones, a simple find and replace in the code is not an option either. Is there an easy solution to this problem?

REGEX find and replace in CV.

Think, what is the common pattern that distinguishes most false line ends?
lower case Letters or a comma with the next line starting in lower case (not perfect: Quotes and proper names (capitals) will be ignored)

search: (?sm)([a-z,])</p>\s+<p .+>([a-z])
replace: \1 \2

Jellby · 07-30-2012, 03:58 AM

Use a different converter, or different calibre settings, that does a better job at detecting paragraphs.

PeterT · 07-30-2012, 10:43 AM

@XayneP_G: Look at the line un-wrap setting in the Heuristic Processing options on the PDF conversion. Changing that might help with paragraph detection.

07-29-2012, 11:29 PM	#1
XayneP_G Junior Member Posts: 1 Karma: 10 Join Date: Jul 2012 Device: Kobo Touch	PDF to EPUB conversion This problem has probably been addressed elsewhere, I suspect it has an easy solution, however I have very little experience with coding and at this point im stuck. I used calibre to convert a PDF file to EPUB. The resulting file had paragraph breaks (<P>) where each line of text ended on the PDF. This means a lot of blank lines through the ebook I was trying to read. I found I was able to delete the lines manually with Sigil, however it would be a very time consuming process to go through the entire text. As the superfluous paragraph breaks are indistinguishable from the genuine ones, a simple find and replace in the code is not an option either. Is there an easy solution to this problem?

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07-30-2012, 03:58 AM	#3
Jellby frumious Bandersnatch Posts: 7,546 Karma: 19001583 Join Date: Jan 2008 Location: Spaniard in Sweden Device: Cybook Orizon, Kobo Aura	Use a different converter, or different calibre settings, that does a better job at detecting paragraphs.

07-30-2012, 10:43 AM	#4
PeterT Grand Sorcerer Posts: 13,396 Karma: 78877538 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	@XayneP_G: Look at the line un-wrap setting in the Heuristic Processing options on the PDF conversion. Changing that might help with paragraph detection.

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