Dear Jerry, GIF only has 256 different colours. PNG has lossless compression. I suggest PNG. tOM On Wednesday, April 07, 2004 at 11:08, Jerry McCown <photoforum@xxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello all; > > I produce training presentations in Microsoft PowerPoint and have just > noticed that my photos in the presentations are not as sharp as when > they were originally inserted. Since I use JPEGs to reduce file size, > and edit the presentations on a continuos basis, apparently every time I > save the presentation, I am also saving the JPEGs and detail is lost. Do > any of you know if my analysis is correct? Anytime a PowerPoint > presentation is saved each JPEG in the presentation will lose some > pixels? > > If I find that I will need to turn to a 'non-lossy' format, is the > recommendation to go to GIF, PNG, or some other format? > > Thanks in advance for any assistance. > > > ------- Quidquid latine dictum sit altum viditur ------- ,__@ tOM Trottier +1 613 231-6115 _-\_<, 758 Albert St.,Ottawa ON Canada K1R 7V8 (*)/'(*) N45.412 W75.714 <a href="http://Abacurial.com">Abacurial Information Architecture</a> --------------- I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it. -Thomas Jefferson 1743-1826)