ABSTRACT
Image resolution for printing purposes is talked about in ‘dots per inch’, shortened to dpi. For images printed on paper, such as books, magazines and newspapers, the number of dots per inch required correlates directly with the quality of the paper. There are no printing issues: so, anything destined for on-screen delivery, such as the internet, is created at 72dpi. CMYK Printing inks create color in precisely the opposite way to monitors. A lot depends on the type of paper used, the printing method — sheet-fed or web offset — as well as the specific printing machine used. Professional publications will go to great lengths to print test images, comparing them with the original files, before producing their own custom RGB to CMYK conversion. Image size and resolution have long confused even the most Photoshop-savvy of digital artists. When the readers save JPEG images from Photoshop, they’re trading quality against file size: the lower the quality the smaller the file.
