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Old Aug 14, 2005, 6:15 AM   #1
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Okay here is the deal, I am trying to make magnets with a picture on them. The site will only accept pictures that are 300dpi, but the professional photos I had made are 72dpi. I read online that if you reduce your photos to a 4X6 that it would increase a 72dpi photo to a 300dpi. But all of the programs on my computer only reduce by the pixels and when doing it that way it keeps the same 72dpi.

If I decide to use a picture I took myself I am still in the same boat because my camera takes 180dpi. Is it possible to increase the dpi? Any help is greatly appriciated!
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Old Aug 14, 2005, 9:55 AM   #2
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your camera does not take the picture with a certain dpi. The 72 dpi you see is meaningless, it's just embedded in your picture.

dpi refers to "dots per inch". Ergo, if you print the picture (magnet) at a small enough size, you'll eventually get to 300 dpi. If your magnet is 5x7 or less in size and your camera's resolution is 4 MP, you have enough for 300 dpi, barring heavy cropping.

Refer to this table to see the minimum resolution needed to get 300 dpi for various photo sizes:

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Old Aug 14, 2005, 10:28 AM   #3
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u can change the dpi in photoshop with image>image size and check OFF the resample image option and then enter dpi as 300 and click ok.
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