Considering the relatively low quality, I’m not even sure it matters if you send them a 300ppi, flattened PNG. With KDP, under the best circumstances, it’s a crapshoot - you never really know for sure how it’s going to turn out. If you were dealing with a good offset printer, you’d receive a high-quality (hardcopy, if requested) proof that would enable you to check this stuff with a guarantee of quality. Their whole business model is built around fast and cheap, not quality. ![]() ![]() Another thing to consider is that KDP is the equivalent of a lower-quality gang-run printing. Their output resolution won’t be anywhere near as high as offset. A cheap B&W laser printer output is typically at least 600dpi, so you don’t want to rasterize line art to 300ppi (Yes, dpi, lpi, and ppi are all separate terms that have specific meanings, but that’s a tangent you can look up on your own.)Īll that considered, you’re dealing with KDP, which is digital, not offset litho. The typical output resolution of an imagesetter or platesetter is upwards of 3–4000 dots per inch, which is great for line art, but not if it’s already been rasterized to 300ppi. Line art (black type, body copy, solid-color lines, etc.) isn’t composed of those dots and should be output at a higher resolution to keep the edges sharp. The 300 ppi thing is to ensure good enough quality for halftones (photos made from 150-lpi halftone dots). I’m talking about print on demand.Īs was saying, line art should be output at a higher resolution than 300 ppi. I was thinking that if it’s a target size file (8.5x11) and won’t be enlarged anymore then 300 dpi and rasterization should be ok. If it’s digital consumption and print at home type of thing - then 150-300ppi would be sufficient to rasterise to. ![]() If you’re rastersing your files for print in litho/digital -then I’d highly recommend for line drawings to use 1200ppi at least. So if it’s digital downloads think mobile phones apple/android, mac/windows, chrome/firefox etc Samsung PDF reader, Mac Preview - all generally are good PDF readers etc but are 3rd party. The white lines are just screen artifacts - and any 3rd party PDF reader (non-Adobe) will struggle with transparencies.Īs such, a general PDF going out into the world for digital consumption should be flattened probably with PDF X1a - which will flatten the entire document for the PDF. If it’s for printing then for those black lines creating the butterfly you’d need a 1200ppi for output on litho presses.Īre you getting these printed or what’s happening? If it’s just to display on the cover at the webstore - then it should be fine.
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