It's not a good idea to simply lift an image from someone's
website - and it's almost certainly an infringement of copyright.
There's no technical problem when printing
graphics from web pages but the quality is generally very, very
poor. Images on the web are usually only 72dpi when, to get maximum quality from
commercial printing, they need to be 300dpi or higher.
Work it out yourself: 72dpi x 72dpi (webpage graphic) = 5,184 dots whereas 300dpi x 300dpi (professional graphic) = 90,000 dots. Size for size high-end professional printing is over 17 times the resolution of the internet.
For top quality results
text and headlines should be produced in a programme that can use both vector
graphics and bitmap images. Examples are Adobe InDesign, Quark Express,
Corel Draw, Microsoft Publisher, PagePlus - and there are many
others to choose from.