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Old 05-23-2018, 12:38 PM   #1
roger64
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Join Date: Jan 2009
Device: Kindle PW3 (wifi)
About ePub > PDF conversion

Hi

I have used for a long time the Prince PDF plugin. I have been very favorably impressed by the quality of Calibre ePub-to-PDF conversion.

I have some questions.

1- the PDF produced by Calibre does not hyphen the text (and the hyphenation is not explicity forbidden or limited in the html). Though it does not seem to be important for English texts, it can give sometimes an irregular aspect to the display of text when it's written in languages which use lots of long words. Can hyphenation be added (even as an option)?

2- the size of the output PDF is amazingly compact. I can only match it with Prince if I use cpdf for "squeezing" further the PDF. How do you compress the output PDF?

3- Once the exact settings have been found (which requires some tries), it would be nice if we could save the output profile somewhere. One can imagine that we may use several kinds of PDF, one for each ebook-reader size. Maybe I am misled, but I did not find such an option.
Even repeating the same conversion is no small feat. As it seems that Calibre fails to keep faithfully the last settings, the user has to remember several values scattered among several screens.

4- About conversion itself, I noticed two minor points:
a- drop-caps over two lines are not converted correctly (Calibre displays them on the ePub OK) Drop-caps over three lines are OK everywhere.
b- some full page images are converted with the wrong margins (Calibre displays them on the ePub OK). The latter case may be due to the fact that I did not find the right setting (?). The cover image uses exactly the same code and is perfectly displayed (with margin 0). Other images inside the text, alone in their own file, with exactly the same code, fail to display with margin 0.

I can provide you with the source ePub.

Last edited by roger64; 05-23-2018 at 04:56 PM.
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