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Re: Pixels per Inch [message #37383 is a reply to message #37382] Mon, 15 December 2003 12:20 Go to previous messageGo to previous message
Craig Markwardt is currently offline  Craig Markwardt
Messages: 1869
Registered: November 1996
Senior Member
JD Smith <jdsmith@as.arizona.edu> writes:
[ ... ]
> It depends on how many "inches" you intend to output the image to.
> This is a basic and common mis-understanding of how image resolution
> works. A bitmap image like a PNG file has a specific size in pixels,
> nxm say, but does not have an associated "physical size". The


JD, I'm not sure that's always true. I believe that TIFF images have
an inherent (desired) dot pitch. Perhaps other formats do too, but
PNGs definitely do not, so your comment is appropriate for the
original poster.

Craig
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