Epubs with oversize html files

adrian1944 · 12-31-2013, 07:31 AM

When I started with epub files on a sony 505 there was a frequent problem with files over (i believe) 260k inside the epub and i got used to doing an epub to epub convert in calibre

I still tend to do this with all new pubs on entry to calibre, but in a post Sony world with the files usually destined for an iPad, am i wasting my time with this conversion or does the problem still exist?

adrian

kovidgoyal · 12-31-2013, 07:36 AM

Modern ebook reading devices do not have a hard limit, unlike the sony readers.

However, it is never a good idea to have very large html files, as devices will still choke on them. There is no longer a hard limit, but as a rule of thumb, the old limit of 260K works well.

Most ebook files do not have large enough html files inside to cause an iPad problems, so you could probably get away with not doing the conversions. However, every once in a while you may come across a pathological epub.

faltradl · 12-31-2013, 08:27 AM

Right, but it's still better not to forget the old limits. There are still enough of the old readers in use. And not everybody of the users is able to help himself.

DoctorOhh · 12-31-2013, 09:21 AM

Quote:

Originally Posted by faltradl

Right, but it's still better not to forget the old limits. There are still enough of the old readers in use. And not everybody of the users is able to help himself.

Your point is lost on me. The OP wasn't asking a hypothetical question about what might or might not work for everyone else he was asking for himself.

theducks · 12-31-2013, 11:03 AM

I still think there will be performance gains (by avoiding performance losses) using the old size.

adrian1944 · 01-01-2014, 04:28 AM

Thank you all

I think the answer for me is not to do an automatic conversion with each epub but from time to time run the quality check plug in on all recent books for the oversize html file check and convert epub to epub for any that fail the check.

theducks · 01-01-2014, 11:15 AM

Quote:

Originally Posted by adrian1944

Thank you all

I think the answer for me is not to do an automatic conversion with each epub but from time to time run the quality check plug in on all recent books for the oversize html file check and convert epub to epub for any that fail the check.

Your IMHO better option: is the use the Split option of the Editor to place that Split where you want it.
All Hail to the Green Line

12-31-2013, 07:31 AM	#1
adrian1944 Connoisseur Posts: 74 Karma: 342 Join Date: Sep 2008 Location: England Device: Imac, iPhone SE, iPad Air 2, Ipad Mini, Ipad Pro, Sony 650.	Epubs with oversize html files When I started with epub files on a sony 505 there was a frequent problem with files over (i believe) 260k inside the epub and i got used to doing an epub to epub convert in calibre I still tend to do this with all new pubs on entry to calibre, but in a post Sony world with the files usually destined for an iPad, am i wasting my time with this conversion or does the problem still exist? adrian

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12-31-2013, 07:36 AM	#2
kovidgoyal creator of calibre Posts: 45,231 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Modern ebook reading devices do not have a hard limit, unlike the sony readers. However, it is never a good idea to have very large html files, as devices will still choke on them. There is no longer a hard limit, but as a rule of thumb, the old limit of 260K works well. Most ebook files do not have large enough html files inside to cause an iPad problems, so you could probably get away with not doing the conversions. However, every once in a while you may come across a pathological epub.

12-31-2013, 08:27 AM	#3
faltradl Guru Posts: 602 Karma: 1712372 Join Date: Feb 2013 Location: germany Device: PocketBook Touch	Right, but it's still better not to forget the old limits. There are still enough of the old readers in use. And not everybody of the users is able to help himself.

12-31-2013, 11:03 AM	#5
theducks Well trained by Cats Posts: 30,925 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	I still think there will be performance gains (by avoiding performance losses) using the old size.

01-01-2014, 04:28 AM	#6
adrian1944 Connoisseur Posts: 74 Karma: 342 Join Date: Sep 2008 Location: England Device: Imac, iPhone SE, iPad Air 2, Ipad Mini, Ipad Pro, Sony 650.	Thank you all I think the answer for me is not to do an automatic conversion with each epub but from time to time run the quality check plug in on all recent books for the oversize html file check and convert epub to epub for any that fail the check.

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