Quote:
Originally Posted by David J. Guyton
I excluded interior pictures from my novel because I didn't know what size (as in pixel size) to make them. Does it matter? Will the Kindle fit them to screen? Does anyone know the recommended pixel size for a picture?
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For images inside a MOBI (AZW) ebook, the largest in-line displayed image size for the Kindle 1 is 525x640 and the Kindle 2 should be similar (images are automatically rescaled to fit). Both now support a 600x800 "zoom" mode, which will also use landscape if necessary, see
Kindle now Zooms AZW Images.
Some ebook images were optimized for the Kindle 1 by using only 4 grey scales, and these are now usable but suboptimal on the Kindle 2. If you want to optimize for the Kindle 2, then 16 greyscales and 525x640 or 600x800 or 800x600 are good sizes (keep the original aspect ratio). Note that the Kindle 3 will probably have a screen larger than 600x800 pixels (and the iPhone has a color screen), so device specific optimizations are only a good idea if you really need the very best result on a single device type.
If the original is large and in color, I would use it "as is" in JPEG format. By large I mean at least 500x500, and I would not change the size of images up to about 1500x1500. Let the device rescale the image for you. If the original image is small, then get a larger version if at all possible.