Thread: Image requirements for Apple Itunes store
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Old 10-27-2011, 01:16 AM   #5
wannabee
Media Bloke
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Posts: 2,382
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Join Date: Sep 2010
Location: NSW - Australia
Device: iOS
I got this email from iTunes last Friday

Spoiler:
Quote:

Image Size
When creating a book, remember that all images must be smaller than 2 million pixels. Since images larger than this reduce iBooks' performance, providing appropriately sized images will help ensure a quality customer experience. Books with images that exceed this limit will soon be removed from the store and a ticket will be created to notify you of the problem. If you receive a notification, simply fix the EPUB and redeliver with iTunes Producer. Note that you can calculate an image's size by multiplying the height (in pixels) by the width (in pixels).

Fixed Layout
When creating a fixed-layout EPUB, make sure the viewport dimensions match the dimensions of the <body> tag. If they do not, the page will size incorrectly and only be partially visible to the reader.
The height and width of a fixed-layout EPUB is defined in a <meta> tag in the <head> section of the XHTML document (for example, <meta name="viewport" content="width=600, height=1000" />). Since iBooks uses these viewport dimensions to determine the aspect ratio, they must be consistent throughout the book (in addition to matching the <body> tag dimensions).


I accidentally placed the print file into an epub (about 5 million pixels) instead of the smaller one. I also had images resizing to 99% in the CSS for that book.

The result in iBooks was that the image would draw on the page and immediately disappear along with the next page.
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