MobileRead Forums - View Single Post - Conveting huge PDF to EPUB, what should I expect?

Xzahn · 07-24-2017, 01:53 AM

Hi folks,
I'm currently running a converting job on 1400 page high-quality PDF with lots of pictures. The file is 260MBs.
I ran the file before and it went for about 800 minutes before I stopped it because I thought it was bugged or something. Then I read that large files can take hours to convert and as long as I do not get errors the program is working. So I ran it again and it has been 530 minutes so far. Calibre currently takes 15% of my CPU and 2GB of RAM.
What should I expect? Anyone converted something like that? How long did it take?
I've been using the program for 2 days now and converted a few 50-80MBs books. All took less than a minute to complete except a 30MB one that took 40 mins. File size doesn't seem to have any direct effect.
By the way, can I somehow direct CPU power towards Calibre to speed up the process? I'm already using the 64-bit version.
Thanks!

07-24-2017, 01:53 AM	#1
Xzahn Junior Member Posts: 2 Karma: 10 Join Date: Jul 2017 Device: Kobo Touch 2	Conveting huge PDF to EPUB, what should I expect? [w/ RESULTS] Hi folks, I'm currently running a converting job on 1400 page high-quality PDF with lots of pictures. The file is 260MBs. I ran the file before and it went for about 800 minutes before I stopped it because I thought it was bugged or something. Then I read that large files can take hours to convert and as long as I do not get errors the program is working. So I ran it again and it has been 530 minutes so far. Calibre currently takes 15% of my CPU and 2GB of RAM. What should I expect? Anyone converted something like that? How long did it take? I've been using the program for 2 days now and converted a few 50-80MBs books. All took less than a minute to complete except a 30MB one that took 40 mins. File size doesn't seem to have any direct effect. By the way, can I somehow direct CPU power towards Calibre to speed up the process? I'm already using the 64-bit version. Thanks! Last edited by Xzahn; 07-24-2017 at 04:22 PM.