hi all..i would like to noe is there any picture editing software dat can enable us to chg a picture into higher resolution? eg. changing a 800x640 pic into a 1200x800. i really nid help on dat. thx alot.

try this~

http://graphicssoft.about.com/od/resolutio..._Resolution.htm

You can use gimp
http://www.gimp.org/
or here
http://www.picresize.com/

but the quality of the picture will reduce

i tot increasing the resolution means making it into a higher quality 1 ?

Increasing the resolution in the source input device e.g. cameras, scanners etc would, doing it through software is just like doing a digital zoom on cheapo cams, you can zoom but the pixels are blown up...

for photo edititing, gimp is good. alternative i paint.net
can take a look in these two sites.

for photo resizing try fotosizer it small and fast.