Understanding image size
Be aware of how resolution and resampling affect prints
01 Pixel dimensions
This is the physical number of pixels that make up your image.
02 Document size
The size your image will be when printed, and its resolution in pixels per inch (ppi). Most printers give their best quality at 300ppi.
03 Resample image
Tick this box if the image needs to be resized (or ‘resampled’) from its current size (which might be way to big for your paper or frame) to a smaller (or bigger) size for printing. You can then type in the size you want your print to be in the fields above. There’s little loss in quality when printing smaller, but if you want a larger print than you have pixels, this comes at a price of diminished quality, as the missing pixels have to be created (or ‘interpolated’) based on their neighbours. Try not to increase the size by more than 30 per cent.