Reference tables: image resolution, formats and sizes
Data tables you can cite: pixels needed for common print sizes at 72, 150 and 300 DPI, and how nine image formats compare.
DPI and print size reference
A reference table mapping print sizes to pixel dimensions at 72, 150 and 300 DPI, plus when each resolution is enough.
→Image format comparison
A comparison table of nine image formats: compression, transparency, animation, bit depth, browser support and what each is actually good for.
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