04-24-2011, 10:43 AM | #1 |
Member
Posts: 12
Karma: 10
Join Date: Jun 2010
Device: PocketBook IQ, Sony Ereader Touch PRS600
|
pdf to epub - file size increases
Hi, I'm having an issue converting a pdf file to epub. The pdf file is 3.2MB and when I convert it to an epub using Calibre, the output file ends up being 59.5MB! Any ideas why this could be? Thanks.
|
04-24-2011, 10:57 AM | #2 | |
Well trained by Cats
Posts: 30,370
Karma: 58053698
Join Date: Aug 2009
Location: The Central Coast of California
Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A
|
Quote:
https://www.mobileread.com/forums/sho...d.php?t=118605 |
|
Advert | |
|
04-24-2011, 01:33 PM | #3 |
Member
Posts: 12
Karma: 10
Join Date: Jun 2010
Device: PocketBook IQ, Sony Ereader Touch PRS600
|
Yes, thanks...but it doesn't do me any good.
|
04-24-2011, 02:39 PM | #4 |
Wizard
Posts: 1,337
Karma: 123455
Join Date: Apr 2009
Location: Malaysia
Device: PRS-650, iPhone
|
|
04-25-2011, 12:43 AM | #5 |
Member
Posts: 12
Karma: 10
Join Date: Jun 2010
Device: PocketBook IQ, Sony Ereader Touch PRS600
|
Thanks, not sure if I'm missing something here? But I am not using OSX...I'm on a PC using Windows. Also, the original pdf file is fine at 3MB, however it's the EPUB output file that comes out so large. I've converted many pdfs with Calibre and this has never happened yet...usually the epub ends up being smaller than the original pdf. This is really baffling me...
|
Advert | |
|
04-25-2011, 12:47 AM | #6 | |
Wizard
Posts: 1,337
Karma: 123455
Join Date: Apr 2009
Location: Malaysia
Device: PRS-650, iPhone
|
Ah, well if that's the direction open up the epub with a zip utility and look inside. The most likely reason is also in the FAQ, but it's not just not explicitly describing the symptoms the same way you are:
Quote:
|
|
04-28-2011, 10:02 AM | #7 |
Wannabe Connoisseur
Posts: 426
Karma: 2516674
Join Date: Apr 2011
Location: Geelong, Australia
Device: Kobo Libra 2, Kobo Aura 2, Sony PRS-T1, Sony PRS-350, Palm TX
|
Does your pdf have a background image?
I had a couple of pdf books that sound similar to what you're seeing - the input files were about a megabyte but the calibre-converted epubs were all around 40-50MB. They had a grey background image, and calibre wanted to add the same simple background image to the epub thousands of times. These were pdfs that were exported from OpenOffice direct by the author - they weren't scanned books. An epub file is just a zip file - you could always rename it to "book.zip" and then look inside with Windows Explorer by double clicking on it to see what's taking up the space. Cheers, Simon. |
04-28-2011, 11:45 AM | #8 |
Wizard
Posts: 3,130
Karma: 91256
Join Date: Feb 2008
Location: Germany
Device: Cybook Gen3
|
|
04-28-2011, 04:23 PM | #9 |
Wannabe Connoisseur
Posts: 426
Karma: 2516674
Join Date: Apr 2011
Location: Geelong, Australia
Device: Kobo Libra 2, Kobo Aura 2, Sony PRS-T1, Sony PRS-350, Palm TX
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
EPUB File Size | yuxi_kelly | ePub | 9 | 07-27-2012 09:34 AM |
Maximum File size for epub | bhuvana786 | ePub | 4 | 12-24-2010 03:21 AM |
ePub file size | Adjust | ePub | 16 | 10-27-2010 11:55 AM |
v0.7.2 increase in epub file size? | skb | Calibre | 2 | 06-12-2010 05:12 PM |
【Best PDF Size】I find The reason of slowing When Read PDF file | linlance | Sony Reader | 0 | 03-11-2010 08:13 AM |