![]() |
#1 |
Junior Member
![]() Posts: 1
Karma: 10
Join Date: Jun 2010
Device: Iphone
|
Problem converting pdf to epub (size) using calibre
Hi everyone, I had a pdf ebook made only by images. I converted it into a searchable text pdf using an ocr program called pdf converter professional, a very good program. The original pdf was 8mb, the new pdf is about 18mb. When I try to convert it to epub format using Calibre I get an epub output file of 80+ mb and there's no way I could manage to upload such a big file to my iphone unfortunately (I also tried to convert the 8mb pdf to epub but I still get a big 70mb+ epub file as an output). I haven't figured out yet how to make my output file smaller, do I make some mistake in calibre's settings? Please help me
![]() p.s. if this could help I also converted the file with the ocr program in a .doc format, but since calibre doesn't support .doc I don't know how this could be useful Last edited by abadguy; 06-09-2010 at 08:47 AM. |
![]() |
![]() |
![]() |
#2 |
Connoisseur
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 98
Karma: 122982
Join Date: Apr 2010
Location: Humboldt County, California
Device: ipad, iPod touch, JetBook Lite
|
You might try making a copy of the epub (an epub is just a zip archive), renaming the extension to .zip (from .epub), unzipping the book, and see which files in the epub are large. It could be that there are some large images. If you then open the images in Preview or Photoshop or Gimp, you an probably save those images at a reduced resolution, zip of the files, and make it an epub again.
|
![]() |
![]() |
Advert | |
|
![]() |
#3 |
frumious Bandersnatch
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 7,517
Karma: 19000001
Join Date: Jan 2008
Location: Spaniard in Sweden
Device: Cybook Orizon, Kobo Aura
|
Maybe the "searchable text" pdf has both the images and the text, and when you convert it to epub, calibre keeps the images. Try getting a text-only file first with your OCR program, and make it HTML if possible.
|
![]() |
![]() |
![]() |
#4 | |
Wizard
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 1,213
Karma: 12890
Join Date: Feb 2009
Location: Amherst, Massachusetts, USA
Device: Sony PRS-505
|
Quote:
|
|
![]() |
![]() |
![]() |
#5 |
Connoisseur
![]() Posts: 81
Karma: 12
Join Date: Jul 2011
Device: Pocketbook 612
|
I'm having the reverse problem: getting epubs into PDFs. It actually just fails completely. any thoughts?
|
![]() |
![]() |
Advert | |
|
![]() |
#6 | |
Wizard
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 1,213
Karma: 12890
Join Date: Feb 2009
Location: Amherst, Massachusetts, USA
Device: Sony PRS-505
|
Quote:
For the other direction, I'd use jellby's script instead. Here. |
|
![]() |
![]() |
![]() |
#7 |
Connoisseur
![]() Posts: 81
Karma: 12
Join Date: Jul 2011
Device: Pocketbook 612
|
I'll do that, thanx! =)
|
![]() |
![]() |
![]() |
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Problem with double L's converting PDF to EPUB | TheFakeMoonMan | Conversion | 26 | 06-08-2018 05:18 PM |
Problem with accents converting PDF to EPUB | madeira | Calibre | 0 | 07-09-2010 05:15 PM |
Problem converting PDF to EPUB in calibre | adgpro | Calibre | 2 | 07-09-2010 01:10 AM |
Problem converting pdf to epub | smartin | Calibre | 3 | 05-02-2010 06:55 AM |
problem with calibre converting pdf to lrf | badr | Calibre | 11 | 05-23-2008 10:16 AM |