...powerpoint is not a desktop publishing program, it is a screen display program and should be avoided for print work...
...MS Word falls into the same category in many ways, but if you know what your doing then you can get by with using MS Word/Powerpont in some print projects...
...but really, if you want quality printed work then you need a page layout program, like publisher (designers avoid that one too really), Adobe Suite, Quark...
...having said that, Powerpoint can save to PDF format (file > save as > change to PDF), which will produce better quality printed text and pictures...
...but beware, your "source" inserted bitmap images need to be of sufficient pixel resolution in the first place...
...it is also worth pointing out that text (even at 300 dpi) does't look as crisp as true vector text, so typesetting is again best done in a page layout program, not GIMP or Photoshop...
...GIMP is a free bitmap program by the way, bit like Photoshop...
...so all in all, use powerpoint carefully and you can get a printed result, but save to PDF and not a bitmap format like jpeg...
andrew
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