Serif PagePlus PDF 8 is a "funny" program. It is for desktop publishing, and you may save your job as a pdf file - hence the program's name. However, you cannot use PagePlus to edit or even to open a pdf file, as the only supported extensions are ppp, ppl and ppx!!
Download-lack-of-speed for 96½ MB setup file:
16.48 KB/s = 1:46 hour!

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I have Ghostscript, and it was kind of funny to open a pdf file with IrfanView - I never would have thought of such combination. I just don't need
an editor, but the right one. INfix could be that one, if I somehow can get it a *LOT* cheaper than the listed $99/$299.