PRINT

• Resolution should be 300 dpi (dots per inch)
• Sizes are usually done by paper eg A5, A4, A3, etc
• Colour mode should be CMYK (Cyan, Magenta, Yellow, Black), as these are the realworld colours used to print
• There should be margins when printing via a home/office printer as they cannot print right to the edge of the page
• There should be a bleed when printing via a printing server, which is an overprint to ensure all of the page is covered right to the edge

SCREEN

• Resolution for basic web should be 72 dpi
• Resolution for retina devices (eg latest 4k/5k devices) should be 144 dpi
• Resolution for super retina (eg very fancy iPhones) should be 216 dpi
• Colour mode should be RGB (Red, Green, Blue) as these are the colours screens work on
• Margins and bleeds aren’t really relevant
• PNGs can have transparent backgrounds
• JPEGs cannot have transparent backgrounds
• All logos and art files should be provided as vectors, which means they can be rescaled (made bigger or larger) infinitely
• Vector file types include AI, EPS, SVG

Basic rule is you can always make something smaller and/or lower resolution, but you can never make something bigger and/or higher resolution.*