I am looking for a way to edit images in pdf format. I am hoping for a freeware program.

My 2 cents:

1) Get foxIt pdf reader, and extract images out of the pdf
2) Edit them with your software (gimp, psp, photoshop...)
3) Re-create a pdf with your new graphic.

or buy foxIt pdf editor, but I haven't ever tried it...

Another possiblitlity is to use Krita, which has native support for PDF. It's a KDE program however, which means it currently only works on Linux, but that should change later this year.

Photoshop's got native support for PDF too anyway, so you could use that if you've got it.

I tried tripy advice and it worked fine.

Thanks