PDF
Pdf is best for printing. We have with crop and bleed and without.
Most printing places would like this crop and bleed because they can’t print to the corner.
If your unsure just ask your printing service what they want.
JPG
JPG are low quality images. Good for on website’s or slides to reduce sizes of the files.
PNG
PNG files are higher quality.
Better when you want higher quality images for using in slides used on larger screens or printing on smaller posters and handouts.