: How it looks on screen is not a reliable test. The native size of your image, in pixels, and the actual size on paper/vinyl/whatever, in inches, are what will tell you whether an image has

@Jennifer810

How it looks on screen is not a reliable test. The native size of your image, in pixels, and the actual size on paper/vinyl/whatever, in inches, are what will tell you whether an image has enough resolution. You can't go by what's on your screen, which is always a low resolution and is a different physical size from the output.

Divide the pixel width of the image (from Photoshop) by the width of the image as it will be printed (from Illustrator). For a magazine ad, book, handbill or similar product, you typically want to be around 266 ppi or better. For a poster that will be digitally printed, 150 ppi should work fine. There are several answers to the "how much dpi do I need" that you can look up. Just search on "dpi" and you'll get a screenful.

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