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Old 03-19-2012, 12:22 PM   #1
Gerlyn
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Image sizes

Does anyone have a good rule of thumb for images sizes in an epub? With the release of the new ipad and the higher resolution, should the images be now larger to appear better? Going from 1024 x 768 to 2048 x 1536. Has anyone tested it yet?
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Old 03-19-2012, 01:52 PM   #2
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Does anyone have a good rule of thumb for images sizes in an epub? With the release of the new ipad and the higher resolution, should the images be now larger to appear better? Going from 1024 x 768 to 2048 x 1536. Has anyone tested it yet?
There's a thread in the epub-forum
Making images expand for iPad
which is probably interesting for you
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Old 03-19-2012, 02:29 PM   #3
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Thanks for the referral. I read through that and I currently do use percentages for the photo size on the screen itself. I am just wondering if loading a file that is 2500 x 2000 is over the top if the picture is the full screen and you expect them to enlarge it. If I use a file size at 1500x1200 will it have the same effect or is 800 x 600 going to be good enough for the average person if they blow it up on the ipad?
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Old 03-19-2012, 03:01 PM   #4
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Quote:
Originally Posted by Gerlyn View Post
Thanks for the referral. I read through that and I currently do use percentages for the photo size on the screen itself. I am just wondering if loading a file that is 2500 x 2000 is over the top if the picture is the full screen and you expect them to enlarge it. If I use a file size at 1500x1200 will it have the same effect or is 800 x 600 going to be good enough for the average person if they blow it up on the ipad?
I really don't know, but it seams that Ei-Pad can handle zooming in quite well. Maybe i't a good idea to make a test-epbub with different sizes of the same picture and have a look on it.

For a standard E-Ink 6'', 800 x 600 is more than enough.
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Old 03-19-2012, 04:14 PM   #5
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Don't forget that images will be much larger at the higher resolution. If it is not needed, don't do it.
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Old 03-20-2012, 11:24 AM   #6
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To put an end to this I thought I would tell you what I learned. I created an epub using SIGIL and tested it on the new Ipad as well as a Ipad 2. Leaving them images at 600 x 800 is still acceptable, at 1200 x 1500 ideal but not worth the extra file size for me as I have approx 200 photos in the book.

I posted this here as I use SIGIL to create my epubs and have found the answers to my questions answered quickly and unbelievably helpful. Seeing that I use the images in the SIGIL program, I didn't even think to see if there is another forum. If there is a next time I guess I will think about where it could also be answered.
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