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Thread: DPI vs. PPI - What's the difference?

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  1. #1
    Professional Artist Carnifex's Avatar
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    Quote Originally Posted by RobA View Post
    The proper place for "change DPI" should either be in the print settings, as this is the only place it has meaning....when printing.
    Not entirely correct. Every professional graphic designer sets the ppi and printing size in Photoshop so that the image shows up correctly in Indesign/Quark.

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    Quote Originally Posted by Carnifex View Post
    Not entirely correct. Every professional graphic designer sets the ppi and printing size in Photoshop so that the image shows up correctly in Indesign/Quark.
    We can agree to disagree then. You are accepting that what is done by a particular software package or combination of packages is "correct". While this may be what is necessary to get it to work properly, it does not make it "right".

    (And the fact that you even need to provide a mini-tutorial just reinforces my point that the applications have confused the issue to the point of being incomprehensible to most users. )

    -Rob A>

  3. #3
    Professional Artist Carnifex's Avatar
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    Quote Originally Posted by RobA View Post
    We can agree to disagree then. You are accepting that what is done by a particular software package or combination of packages is "correct". While this may be what is necessary to get it to work properly, it does not make it "right".

    (And the fact that you even need to provide a mini-tutorial just reinforces my point that the applications have confused the issue to the point of being incomprehensible to most users. )

    -Rob A>
    Not quite

    Well, the way I see it, the way PS does it is the only way to do it when you work professionally with layout. This is the way it have worked since the dawn of DTP. If you have any other suggestion to make it work you're welcome.

    To import the image to InDesign/Quark/Pagemaker in sceen resolution would be a pain (this is possible nowadays if you want) and then you'd have to check the DPI of every image in the layout program every time you want to resize it. That would be impossible. Some programs automatically resize the images to a certain dpi - but that is not optimal imo when you want maximum control and that would complicate certain other things as well (b/w images for example where you want 1200 ppi for printing).

    (When you make a PDF for offset print you can also set the DPI to limit the size in case you used too large images.)

    (PS is not just any application - it's industry standard. But I agree that they could make the image size much more clear.)

    I also agree with you that dpi/ppi is completely useless until you want to print something - the only thing that matters until then is the number of pixels.
    Last edited by Carnifex; 02-27-2008 at 12:46 PM.

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    Community Leader RPMiller's Avatar
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    Bumping because it seems to be a hot topic due to the May challenge. I've also made it sticky so that it will be easier to find in the future.
    Bill Stickers is innocent! It isn't Bill's fault that he was hanging out in the wrong place.

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