Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Formats > ePub

Notices

Reply
 
Thread Tools Search this Thread
Old 05-10-2009, 02:04 PM   #61
zelda_pinwheel
zeldinha zippy zeldissima
zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.
 
zelda_pinwheel's Avatar
 
Posts: 27,828
Karma: 908606
Join Date: Dec 2007
Location: Paris, France
Device: eb1150 & is that a nook in her pocket, or she just happy to see you?
ePub vs. pdf

jellby has posted a very succinct resume of the different strengths of epub and pdf in this thread, and i thought it would be appropriate to add it here since it's a question which arises frequently.

the original poster wanted to know whether epub could rival the complex layout features of pdfs, and why it's a better format in general for ebooks.

Quote:
Originally Posted by Jellby View Post
Good PDFs are designed to look great at a single page size. Everything fits on the page, the paragraphs are broken at the right places, there are no widows or orphans, illustrations or tables appear where they are needed, vertical spacing is adjusted to make the page look right, etc.

Good ePUBs are made to look good at every (most) page sizes, font sizes, etc. The page won't look "perfect", but it will be good enough and, more important, it will look equally good if you cange the size, the preferences, etc. And you could even disable illustrations

For your own use (fixed parameters), there is nothing you can do with ePUB that you cannot do with PDF, and there are things you can do with PDF that are not possible with ePUB.

As soon as you send the files to others, since they'll have different tastes, needs, devices, etc., there are things they can do to the ePUB that they cannot do to the PDF.

Last edited by zelda_pinwheel; 05-10-2009 at 02:08 PM.
zelda_pinwheel is offline   Reply With Quote
Old 05-13-2009, 02:01 PM   #62
Wetdogeared
Grand Sorcerer
Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.Wetdogeared ought to be getting tired of karma fortunes by now.
 
Wetdogeared's Avatar
 
Posts: 5,689
Karma: 5748133
Join Date: Nov 2008
Location: Maritime, Canada
Device: S0ny PRS-300/350/505/700/T1
EPUB - What a difference a year makes (18 min video)

A presentation from BookNet Canada Technology Forum, Toronto, March 2009.

Michael Smith's presentation on EPUB ~ What a difference a year makes ~ Adoption of a Digital Standard

Mr. Smith needs a bit more practise doing presentations, but some interesting stats and graphics shown. I was almost expecting to see Calibre mentioned in one of his charts regarding conversion, but alas, no. (Mr Smith is executive director of the International Digital Publishing Forum - I'm not sure if he is connected to Hachette or not.)

18 minute video presentation: http://blip.tv/play/AfyRNZWAGA

(*Note - this was posted as an afterthought in another article in the "News and Commentary" forum titled 6 Projects That Could Change Publishing For the Better, but I thought it might get lost so I've reposted the link to the EPUB presentation again in this thread.)

Other presentations on publishing (both eBook and pBook) at the BookNet Canada Technology Forum 2009 are at this link.

http://www.booknetcanada.com/mambo/i...374&Itemid=276

Last edited by Wetdogeared; 05-13-2009 at 02:26 PM.
Wetdogeared is offline   Reply With Quote
Old 05-18-2009, 09:16 AM   #63
zelda_pinwheel
zeldinha zippy zeldissima
zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.
 
zelda_pinwheel's Avatar
 
Posts: 27,828
Karma: 908606
Join Date: Dec 2007
Location: Paris, France
Device: eb1150 & is that a nook in her pocket, or she just happy to see you?
thanks wde for that interesting link ! it's great to see such spectacular growth of ebooks and epub.
zelda_pinwheel is offline   Reply With Quote
Old 05-20-2009, 03:14 AM   #64
Kris777
Banned
Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.Kris777 ought to be getting tired of karma fortunes by now.
 
Posts: 1,767
Karma: 2520493
Join Date: Oct 2008
Device: Nexus 7, jetBook-Lite, jetBook mini, Toshiba Thrive, JETBOOK COLOR
More eBooks added to Norman library

http://www.newsok.com/more-ebooks-ad...rticle/3370944

Pioneer Library System has expanded its selection of electronic books available through its virtual library. The library system added Adobe EPUB eBooks that are compatible with the Sony Reader devices. Library cardholders can access the virtual library through Pioneer’s Web site, www.pls.lib.ok.us.

An eBook is a digital version of a print book that has been formatted for on-screen reading. It is viewable on a computer or can be downloaded to a portable reading device.
Kris777 is offline   Reply With Quote
Old 05-20-2009, 09:37 PM   #65
zelda_pinwheel
zeldinha zippy zeldissima
zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.zelda_pinwheel ought to be getting tired of karma fortunes by now.
 
zelda_pinwheel's Avatar
 
Posts: 27,828
Karma: 908606
Join Date: Dec 2007
Location: Paris, France
Device: eb1150 & is that a nook in her pocket, or she just happy to see you?
hi kris, thanks for the very interesting news ! can i suggest you start a new thread to discuss it, so more people will see it ? i think it could go in the news and commentary forum.
zelda_pinwheel is offline   Reply With Quote
Old 09-27-2009, 07:19 AM   #66
quillaja
Connoisseur
quillaja began at the beginning.
 
quillaja's Avatar
 
Posts: 79
Karma: 42
Join Date: Sep 2009
Device: sony reader touch (prs-600)
Quote:
Originally Posted by dauwhe View Post
ePub fully supports CSS 2.1 and I think almost all of XHTML. Mobi/AZW's CSS support is, what's the polite word, terrible. No support for float, almost all the box model fails, etc.
i'm no expert, but from reading the OPS standard, it seems epub supports only CSS 2.0, not full 2.1. from the standard:

Quote:
This specification defines a style language based on CSS 2. (Note that the CSS 2.1 specification is currently still at "Working Draft" status.)
furthermore, to quote the standard "...not all CSS 2 properties are included." there's a required subset of CSS properties that must be supported by epub reading systems.

I'm reading this at http://www.idpf.org/2007/ops/OPS_2.0...l#Section1.3.5


anyway... one thought that occurred to me while reading this thread is: why would epub be difficult or "computationally expensive" for any portable device that isn't ancient? epub is simply xhtml and css--the same as any webpage. however, because epub doesn't have javascript, flash, or nearly as many images as a webpage, i would imagine it would render faster than a webpage. also, smartphones and such--portable devices--can display webpages just fine, including reflowable and resizable text on a variety of screen sizes (and sizes of browser windows). so why would an epub be any different?

extending that thought... why is creating an epub reading system so difficult? epub files are basically just simple webpages of text. any reader just has to use a copy of webkit or gecko or some other open-source renderer to make an epub reading system that supports far more advanced things than are required by the epub specs. reading systems may perhaps simply need to add a few "hacks" to create reader-specific thing, perhaps something related to pagination or whatnot.
quillaja is offline   Reply With Quote
Old 09-27-2009, 11:27 AM   #67
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 64,976
Karma: 43118253
Join Date: Nov 2006
Location: UK
Device: Kindle Voyage, iPad Mini, iPhone 4, MS Surface Pro, N7
Quote:
Originally Posted by quillaja View Post
anyway... one thought that occurred to me while reading this thread is: why would epub be difficult or "computationally expensive" for any portable device that isn't ancient?
I believe that correctly implementing SVG, which is a part of the ePub standard, is complex and computationally expensive.
HarryT is offline   Reply With Quote
Old 09-27-2009, 11:17 PM   #68
quillaja
Connoisseur
quillaja began at the beginning.
 
quillaja's Avatar
 
Posts: 79
Karma: 42
Join Date: Sep 2009
Device: sony reader touch (prs-600)
true, svg might be a bit hard for weak processors. however, at this time, i think it's safe to say that svg in ebooks is pretty uncommon.
quillaja is offline   Reply With Quote
Old 09-28-2009, 06:38 AM   #69
Jellby
frumious Bandersnatch
Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.
 
Jellby's Avatar
 
Posts: 6,258
Karma: 4801165
Join Date: Jan 2008
Location: Spaniard in Sweden
Device: Cybook Orizon, Kobo Aura
And SVG support in ePUB readers (even desktop readers) seems to be rather poor anyway.
Jellby is offline   Reply With Quote
Old 12-19-2009, 03:26 AM   #70
Fringecup
Enthusiast
Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'Fringecup has never once had to say 'it's on the tip of my tongue...'
 
Fringecup's Avatar
 
Posts: 33
Karma: 127588
Join Date: Dec 2009
Location: Campbell River, BC
Device: Sony Reader 600 Touch Edition
Hi! I've been reading the posts here for the first time because i just got my new Sony 600 reader and Sony sent me a message that they're switching to Epub for the books they sell and I wanted to know how it's different from .pdf, which I've been using for the books I've downloaded from Gutenburg. Is it actually better than PDF and if so, how? Can I use it for converting books from Microsoft format (I haven't figured out that one yet), and will it support color? I ask this because I know that Sony has been working on a color reader for at least 5 years and since I like to read gardening books, color is important to me.

I've found much of the discussion here pretty technical (I'm a beginner at this topic), so please keep it fairly simple. What is DRM anyway? Folks keep referring to it.

Well it's interesting reading your comments, and I'll be back!

-Fringecup
Fringecup is offline   Reply With Quote
Old 12-19-2009, 05:12 AM   #71
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 64,976
Karma: 43118253
Join Date: Nov 2006
Location: UK
Device: Kindle Voyage, iPad Mini, iPhone 4, MS Surface Pro, N7
Quote:
Originally Posted by Fringecup View Post
Hi! I've been reading the posts here for the first time because i just got my new Sony 600 reader and Sony sent me a message that they're switching to Epub for the books they sell and I wanted to know how it's different from .pdf, which I've been using for the books I've downloaded from Gutenburg. Is it actually better than PDF and if so, how?
PDF was not intended to be an eBook format. It is a digital representation of a specific size physical page - that's something that it does very well. The problem with PDF is that you have to create your PDF file for a specific sized display page, and there's no good way to display it different sized screens. Eg, if you create a PDF that's optimized for a 6" screen, then it's going to look pretty bad on a 10" screen.

An ePub book is basically a collection of HTML pages in a "wrapper" and, just like any web page, it can adapt itself to different sized screens by "rearranging" itself (this is called "reflow") to fit the screen. It's a much, much better idea when you're dealing with devices with differently-sized screens. Plus, you can change the font size and do all sorts of other things that you just can't do with a PDF file.

Quote:
Can I use it for converting books from Microsoft format (I haven't figured out that one yet),
Yes.

Quote:
and will it support color? I ask this because I know that Sony has been working on a color reader for at least 5 years and since I like to read gardening books, color is important to me.
Yes, it supports colour.

Quote:
I've found much of the discussion here pretty technical (I'm a beginner at this topic), so please keep it fairly simple. What is DRM anyway? Folks keep referring to it.
DRM is "digital rights management" - the "encryption" technology that's used to "lock" an eBook to a particular user's devices. Some people don't like it. Personally, I'm not bothered.

Hope this helps.
HarryT is offline   Reply With Quote
Old 12-29-2009, 09:41 PM   #72
lmarie
Dilettante
lmarie doesn't litterlmarie doesn't litter
 
lmarie's Avatar
 
Posts: 147
Karma: 132
Join Date: Dec 2007
Location: Philadelphia area
Device: EB1150, Cybook Gen3, Kobo Touch
Harry, I'm curious why DRM doesn't bother you. Is it that you don't normally want to pass your books on to other people? Or, is that you know how to remove the DRM without much effort? Or do you think people should pay to read a book every time? Or is it something else entirely?

(Yes, Zelda, I know this is somewhat off topic, but since I just spent an hour reading this whole thread, trying to digest the epub info in order to figure out which way to go with my Cybook upgrade, I feel "entitled" - )
lmarie is offline   Reply With Quote
Old 12-29-2009, 11:39 PM   #73
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 37,869
Karma: 18755150
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Sony Reader PRS-650, iPad, nook STR
One reason to go ePub is portability. If you decide to get another reader, as long as it supports ADE, you can take your ePub with you and keep reading. It's that easy.
JSWolf is offline   Reply With Quote
Old 12-30-2009, 06:15 AM   #74
Jellby
frumious Bandersnatch
Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.
 
Jellby's Avatar
 
Posts: 6,258
Karma: 4801165
Join Date: Jan 2008
Location: Spaniard in Sweden
Device: Cybook Orizon, Kobo Aura
Quote:
Originally Posted by JSWolf View Post
If you decide to get another reader, as long as it supports ADE, you can take your ePub with you and keep reading.
The same can be said of any other format. As long as it supports the format, you can use it.
Jellby is offline   Reply With Quote
Old 12-30-2009, 01:17 PM   #75
DaleDe
Grand Sorcerer
DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.
 
DaleDe's Avatar
 
Posts: 9,744
Karma: 5072196
Join Date: Aug 2007
Location: Grass Valley, CA
Device: EB 1150, EZ Reader, Literati, iPad 2
Quote:
Originally Posted by Jellby View Post
The same can be said of any other format. As long as it supports the format, you can use it.
Well, yes but this was talking about DRM. DRM when locked to a device can affect portability to a new device.

Dale
DaleDe is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
"I Won't Read a Great Novel on an eReader" BenLee General Discussions 81 02-14-2012 07:26 AM
"Crimson Orgy" promises to be a great Horror novel Dr. Drib Reading Recommendations 0 01-25-2010 07:12 AM
Great Experience with Sony Support....fixed my "not responding" issue DougFNJ Sony Reader 0 11-12-2009 03:42 PM
Now this is what I call a "great" sale on a Sony Reader brecklundin Sony Reader 3 12-19-2007 07:40 AM


All times are GMT -4. The time now is 01:59 AM.


MobileRead.com is a privately owned, operated and funded community.