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u238110 · 07-27-2014, 03:17 PM

Does anyone have a sense of what DPI to use for ebook images? It seems to me like many scans are artificially large in size. For example, 300 DPI is popular, and I don't know if that's always necessary. If the book is brand new, you can include large images in the ebook and then people will have the extra benefit of viewing the images in all their glory on a computer, but if you're just scanning an old book that has images that have been greatly downscaled already, then my only desire is to make the plainest digital copy of the book possible.

Also, if I were to turn a PDF into an EPUB, and the PDF had a table, I would have to screen shot the table to make it an image and add it to the EPUB as an image, right? Is there a more sophisticated way? And I'd make the screen shot at any zoom level I desired, right? Because PDF uses vector/raster images, which have no intrinsic size, right?

07-27-2014, 03:17 PM	#1
u238110 Connoisseur Posts: 91 Karma: 10 Join Date: Feb 2014 Location: Long Island, NY Device: Aura, N514KUBKKEP, 4.7.10.413	DPI to use when scanning images Does anyone have a sense of what DPI to use for ebook images? It seems to me like many scans are artificially large in size. For example, 300 DPI is popular, and I don't know if that's always necessary. If the book is brand new, you can include large images in the ebook and then people will have the extra benefit of viewing the images in all their glory on a computer, but if you're just scanning an old book that has images that have been greatly downscaled already, then my only desire is to make the plainest digital copy of the book possible. Also, if I were to turn a PDF into an EPUB, and the PDF had a table, I would have to screen shot the table to make it an image and add it to the EPUB as an image, right? Is there a more sophisticated way? And I'd make the screen shot at any zoom level I desired, right? Because PDF uses vector/raster images, which have no intrinsic size, right? Last edited by u238110; 07-27-2014 at 03:58 PM.