Each color plane cyan, magenta, yellow and black is technically dpi, but it’s divided up into little cells in order to give better control of color levels, so there are really only individually settable “pixels” of color per inch. This is not very useful, but I’ve done it. If someone asks for specified pixel dimensions, resolution is irrelevant. I’m guess the ppi setting triples the original canvas dimensions? This is what it means to say that usually, even commercial printing has an effective resolution of dpi. If you are the copyright holder, MPix does beautiful prints up to 20×30″.
And in my experience even that is rare. But the bottom line is that if you printed your x JPEG on a business card using a dpi imagesetter, it would 7000s7000 like garbage, either because it would be downsampled to dpi and halftoned, or because it would be printed at dpi but with 1-bit color fidelity.
I said conventional printing, not laser printing.
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When you have time, could you describe more about how PPI effects resolution? It would easily fit on a standard 7000×70000 card. The map, beautifully done, is a x JPEG and I would like to have it printed in full color, in one piece, without any loss in resolution.
Many printers are marketed at very high dpis, but print DPIs of or the effective resolution is still usually around dpis.
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However when I export the image as a png with transparent background, the final resolution of the design is x pixels. Just leave the ppi at And then deliver what they tell you. I think I need to be asking two questions: In other words, what is the smallest printed size which will retain full resolution?
A pixel by pixel can be printed at 2 dpi if you print it large enough. More technical info here. The Xerox DocuColor pdf http: You can later open the exported file in Photoshop and set a different resolution, but this won’t change the number of pixels in the file. If your x px is fixed, the ppi will ultimately depend on those.
You can go as low as dpi and still retain very good image quality. I used to print on a machine that haddots per inch 1. Correct Answers – 10 points. 70000×7000 type your message and try again. Now instead of just having dots per inch, imagine that you divide this x into little 2×2 cells of dots.
The nice thing about inkjet technology is that it deals with low-resolution sources so much more gently than the halftone process. Some 70000×7000 go as high as dpi. They know their machines. In fact, there’s 7000×7000 lot of debate still about what resolution is actually necessary, compounded by the sekrit image processing stuff that the inkjet driver and hardware does to your image during printing.
Do I have to do something like divide my desire canvas size by the PPI?
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I have also found that when necessary, as low as ppi works fine with most inkjets, particularly when we’re doing wall-sized stuff that will be viewed from more than a couple of feet away. This is what it means to say that usually, even commercial printing has an effective resolution of dpi.
A dpi imagesetter can indeed draw x black or white dots in a given square inch, all individually addressable.