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Post by jaydax on Sept 23, 2013 14:29:22 GMT -8
I came across this problem a while ago when books I produced with illustrations looked fine on basic Kindles but looked awful on my Nexus 7 and Kindle Fire HD. Part of the problem is that MS Word limits the dpi of images because it's a word processor not a desktop publishing program. MS want us to buy their DTP software. If you import your document into a program like Calibre to make an epub file you are stuck with Word's 220 ppi at a maximum. The rest of the problem is that images were formatted to work well on an 800x600 screen were now expected to display on a 1200x800 screen (I dread to think what they will look like on a new Nexus 7 1920x1200 screen) The answer comes in several parts: 1. Create a folder of hi-resolution images and import the images into word from that. Once you have created your epub document you can swap the images in it to the ones in the hi-resolution folder using a program such as Sigil. Sorry but that requires a little knowledge of HTML to fix it. 2. If you are using Calibre, make sure it is not set to use a Kindle basic or other low resolution device as the default. 3. If you are using Calibre to create books for Kindle use the AZW file types not MOBI 4. More technical stuff - use the technique in NotJohn's blog at notjohnkdp.blogspot.co.uk/2013/04/how-wide-image.html5. VERY technical stuff - learn how to use SVG (Scalable Vector Graphics). This is vital information for children's book authors who want to stay up with the times.
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Post by galatea on Sept 24, 2013 1:22:21 GMT -8
I've done the NotJohn's technique with a 2100x3000 pixel big picture. Works like a charm on an iPad1, yay. No pixelation and nothing that goes out of the frame. Just don't know about Android.
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Post by jaydax on Sept 24, 2013 7:28:56 GMT -8
I've been experimenting with graphics in ebooks since I came across this problem. I plan on putting my results in a revised guide to getting published book. I had a book containing a large table 17 x 13. To get it to work I created it as a graphic using coloured and shaded cells. It worked fine on the Kindle Keyboard as an 800x600 image. (You can see the table at www.jaydax.co.uk/avestedinterest/TheMessage.htm) When higher resolution screens became available I found the table couldn't be read. NotJohn's solution helps but it's not perfect. If your image is smaller than the screen size it will be expanded. You can set a max-width parameter in the html but that doesn't work on all ereaders. It seems that Scalable Vector Graphics will be the answer but again not all older ereaders support this. At the moment it seems there is no perfect answer.
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