MobileRead Forums - View Single Post - Tip - output profile setting can dramatically slow down conversion

andrewburt · 11-28-2015, 12:57 PM

Just an FYI... I learned this the hard way

and thought I might save someone else a bit of (conversion) time.

The "output profile" setting in Page Setup can have a HUGE impact on conversion times.

I didn't realize when picking "ipad" as the output device that it would run, in my case, 7x slower than the "Default Output Profile." Ouch!

(I didn't realize this for years, until I ran a conversion from the command line on the same PC using ebook-convert, and it was 7x faster. That got me to digging around for the cause.)

I looked at the .mobi output from both "ipad" and "default" profiles, and to my eye, I couldn't see any difference in text or images, so it may be worth your while to try different output profiles for speed.

I've only tested this on epub -> mobi conversions, don't know if it impacts other output formats or not.

Hope this helps save folks some time.

11-28-2015, 12:57 PM	#1
andrewburt Science Fiction Writer Posts: 231 Karma: 124188 Join Date: Dec 2010 Location: Golden, CO Device: several	Tip - output profile setting can dramatically slow down conversion Just an FYI... I learned this the hard way and thought I might save someone else a bit of (conversion) time. The "output profile" setting in Page Setup can have a HUGE impact on conversion times. I didn't realize when picking "ipad" as the output device that it would run, in my case, 7x slower than the "Default Output Profile." Ouch! (I didn't realize this for years, until I ran a conversion from the command line on the same PC using ebook-convert, and it was 7x faster. That got me to digging around for the cause.) I looked at the .mobi output from both "ipad" and "default" profiles, and to my eye, I couldn't see any difference in text or images, so it may be worth your while to try different output profiles for speed. I've only tested this on epub -> mobi conversions, don't know if it impacts other output formats or not. Hope this helps save folks some time.