View Full Version : ePub file size


Adjust
10-14-2010, 10:46 PM
I've just made, what I think is my "master peace to date" my "Magnum Opus" if you will, of ePub design...

Its got everything in it, SVG images, Pic sections, hanging indent Lists hypelinked footnotes, the whole kit-n-kabuttle....

Problem is... it weighs in at 11mb

I guess my question is...is that too big?

will people bulk at the file size?

Does Amazon et al. have restrictions on size?

pholy
10-14-2010, 11:40 PM
Only the sellers who offer free 3G downloads for epubs might care - Nook? Amazon doesn't count :)

For the rest of us, if the illustrations fit, and the tables fit, and no individual file is more that the magic 28? KB limit, it should be fine - if it holds our interest :D

BTW, Liz Castro's book on epub is about 22MB, as I recall.

Jellby
10-15-2010, 05:04 AM
The illustrated versions of Don Quixote and The Divine Comedy I've uploaded are more than 30MB, so I wouldn't worry. Just have a look at what is taking most of the space and see if can reduce it. If it's pictures, maybe you can use a different format (JPG instead of PNG for photographs) or reduce the quality. In any case, make sure you are using the highest compression level in the zip.

Freeshadow
10-15-2010, 10:10 AM
@Jellby
I remember having read, that the zip algo used in 7zip produces generally smaller zip files than others do, while remaining unpackable i.e. compatible with other unzippers.

just to avoid confusion: YES I mean 7zip used for packing .zip and NOT .7z files.

may be worth a test at such final sizes.

HarryT
10-15-2010, 11:44 AM
I've just made, what I think is my "master peace to date" my "Magnum Opus" if you will, of ePub design...

Its got everything in it, SVG images, Pic sections, hanging indent Lists hypelinked footnotes, the whole kit-n-kabuttle....

Problem is... it weighs in at 11mb

I guess my question is...is that too big?


No. 11MB is entirely normal for an illustrated book.

Hedda
10-23-2010, 12:28 PM
I can`t get what you guys mean with "individual file" ... can somebody make it even more clear? How you can have an epub of 30MB 100% funtional? o.o
Since I`m making one but after 330K it stops recognizing paragraph styles, I`m working from Indesign 4.
Thanks for your help!

theducks
10-23-2010, 12:59 PM
I can`t get what you guys mean with "individual file" ... can somebody make it even more clear? How you can have an epub of 30MB 100% funtional? o.o
Since I`m making one but after 330K it stops recognizing paragraph styles, I`m working from Indesign 4.
Thanks for your help!

Simple:
EPUB is a container (a Zip file with certain, extra rules) of many pieces:
styles, pictures,text, metadata, view_order.

All that may be hidden from eye when using certain creation tools ( don't use Indesign, so I don't know if it can show the underpinnings).


So, as a content creator, you must make the decision whether to cater to the non-purist viewer implementations that the Apples, Adobes and others, have put into the the users devices. ;)

quillaja
10-23-2010, 06:42 PM
Be a Real Man or Woman: make ePubs with strait html+css.

CazMar
10-23-2010, 06:56 PM
Be a Real Man or Woman: make ePubs with strait html+css.

Yep - I only trust the code I see! But I do cheat and use Note Tab for all those little code libraries to save me from the usual typos.
Why do people who write programs for preparing HTML documents insist on using non-standard code with bug ridden support for CSS????? Why can I get a program that writes music notation correctly, but not HTML? Arghhh!

As for file size - I seem to have about 250 books on my Kobo and have barely used up any storage space, a few extra MB would hardly be noticed.

wannabee
10-25-2010, 08:48 AM
I guess my question is...is that too big?



Thanks for asking the question you just saved me the trouble:D
I feel better now.

wannabee
10-25-2010, 09:00 AM
All that may be hidden from eye when using certain creation tools ( don't use Indesign, so I don't know if it can show the underpinnings)

You can't see them when authoring. You have to unzip them and edit them after export. Mainly the CSS to tidy it up.

By the way.... What are "the non-purist viewer implementations that the Apples, Adobes and others, have put into the the users devices." you refer to?

Hedda
10-25-2010, 11:37 AM
hey thanks for the answers :)

And about making an epub from the code its kinda hard when you have a book of 500 pages... that`s why I got support from indesign (its the source of the text).
I found out what did happen with my file, it was all ADE`s fault. It didn`t show correctly the chapters I had in, when I saw the epub in my sony Ereader it was perfectly fine, really odd, right?

charleski
10-25-2010, 01:54 PM
I found out what did happen with my file, it was all ADE`s fault. It didn`t show correctly the chapters I had in, when I saw the epub in my sony Ereader it was perfectly fine, really odd, right?

The Sony uses ADE as well, and has the limitation on file size, so it's obviously not ADE's fault.

As long as each individual xhtml flow is under 300K (there's a limit for the packed size as well, but I forget it right now) you'll be fine.

Freeshadow
10-25-2010, 05:09 PM
Be a Real Man or Woman: make ePubs with strait html+css.

Unless one 's already familiar with it (I'm not since I'm no web designer) this would mean to learn from web design education sources AND thereafter drop all stuff which isn't part of the epub spec.

unless someone writes an "epub for dummies" (e)book allowing to learn from without the matter beyond epub.

are you volounteering? :D

charleski
10-25-2010, 06:19 PM
It takes a couple of hours to learn CSS from scratch using free resources, and maybe another hour to learn the exceptions needed for the epub spec. All that's needed beyond that is a few hours of experience to cement the knowledge, special effects like drop caps or other adornments are quite simple as well.

quillaja is right, there's no substitute for learning the basic coding paradigm, it's so simple there's no need.

Freeshadow
10-25-2010, 08:23 PM
@charleski

unfortunately the stuff I came across so far is structured like: (most prominent example is SelfHTML)


learning html
x(xt)ml by pointing differences of 1.)
CSS when you know about the two 1st


should you know a bundle of resources that makes it easy NOT to learn all that stuff I'll never need (I need no web pages for me - they are for people who have something to say to the masses - or think they do)

please feel free to share, iot'd be far simplier than just reading other peoples epub sources and trying to figure stuff out

DaleDe
10-27-2010, 11:55 AM
Perhaps our wiki can be used to learn ePUB. It has a good start and can be expanded as needed.