The worst PDF program I've ever used. It's glitchy, slow, unreliable and locks up! I stuck with them for several years but after their latest "Improved" Update that locks up upon exit and you have to use Ctl Alt Del to get out I was done with them. I gave them one last chance but when after 4 tries their "Support" couldn't fix it I was done. Wish I had jumped ship two years ago!