Graphics and logos from the Web (generally 72 dpi) are not acceptable for printing.
 
JPG and GIF at 72 dpi are the two main Web page image formats.  It is usually not possible for us to work with art at such a low resolution. 

On a computer monitor these images appear crisp and clean.  However, when these images are enlarged for printing the end result is an inferior bumpy, dotted and pixelated image. 

We can, but do not recommend, using bit-mapped images in JPG, GIF, BMP or TIF format with a resolution of 300 dpi or greater.

Scalable vector artwork (logos, graphics) is preferred over any other format.

Hi Res Logo Lo Res logo
Vector based logo JPG logo taken from Website