02.  What file formats are acceptable?

Generally, for photographic images we need: Tiff or JPEG images in CMYK at 300dpi at final sprinted size.

TIFF is a file format often used for professional-quality digital images.

JPEG is  a file format that sacrifices some quality in the final image for small file size. This small file size makes it ideal for electronic transmission, for example in html emails.

CMYK is the colour mode used in printing on paper, using inks that are Cyan, Magenta, Yellow and Black.

300 dpi means that at the final size that the image will be printed, there are 300 dots  (or pixels) per linear inch. Lower resolutions can be used, but at less than 200 dpi, the image quality will be visibly reduced.

For logos we generally need EPS files. Encapsulated PostScript files are resolution independent, which means that they scale up (and down) in size without degradation in image quality.