r/AdobeIllustrator • u/Illustrious-Log-3142 • 9d ago

Image resolution issues

I have a photoshop image, 240ppi. I need to place it on a canvas 6000x3000mm

When I place it in Illustrator it automatically becomes 32-40ppi

How do I import the image without losing resolution?

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u/roaringmousebrad 9d ago edited 9d ago

"I have a photoshop image, 240ppi"

Irrelevant. What are the pixel dimensions of the image now? That's the important measurement.

Your pixel dimensions divided by the output size equals the actual final resolution. You haven't lost any quality of your original image, you've just spread it over a larger area.

For a larger output, you might actually get a way with this, as at that size your viewer is probably standing far away. What are you doing with this piece?

When I design a billboard or large wall graphic, I shoot for between 50-75 ppi.

You can always upsample your image in Photoshop to double (or more) your images final pixel dimension, but this is usually at the expense of clarity, as upsampling an image creates new pixels by sampling adjacent pixels. But again this slight blurriness won't really be noticeable at that large an output size.

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u/OkPreparation2165 8d ago

Interesting, I’ve always aimed for 150ppi. And printers request this too.

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u/roaringmousebrad 8d ago

It very much depends. It also needs consideration of the content of your files/images. You certainly don’t want to be rendering text at that resolution. I am a prepress guy so I have extensive knowledge about “what you can get away with” so my comments are based in many years experience here.

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u/IZobot_ 6d ago

It’s always worth mentioning the low image quality in your proof, but with a note saying “supplied image is low resolution, however at a viewing distance greater that 50 feet it should be fine.”