: Creating a Large Image from a small one I have an image that has been scanned from a 35mm slide. It is a tiff file and is 2.04 cm by 3.35cm with a resolution of 9600. I need to create

@Moriarity648

In Photoshop click Image > Image Size

This is what you will see



Make sure "Resample" is unchecked, and enter 800 as the width. Click OK.



Alternatively do nothing, and tell the person producing the print what size it should be. Technically, you don't need to do anything. Changing the dpi without resampling actually does nothing to the image file anyway, except change the print size, and print resolution.

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@Annie732

What do you mean by "a resolution of 9600"? Do you mean DPI? If so than the pixel width of the file is (9600/2.54) x 3.35 = 12661px

Un-scaled, and printed at 8m wide, this equates to aprox 40DPI
((12661/800) x 2.54)

Which would be perfectly acceptable as a print at this size.

Obviously you wont be printing this yourself at home, let your printer deal with the file & scaling etc.

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