I got PSP7 and like it. The only thing you can do with it thoug is reduce FILE SIZE... Do you want to reduce picture size as wel (i.e. RESIZE?).
But those ppl are right, File, Batch Convert, as JPEG should do the trick.
I clearly recommend
xnView though. It's basically a picture viewer & browser (a nice one as well), but it's got a GREAT batch converter. -> Tools, Multiple Convert [CTRL + U].
The GREAT thing about this is, you can also choose filters. I.e. reduce colordepth in all files, resize, gamma correction, or anything...
Clearly
this proggy...