Hey Parker, check out this thread:
I have a free key of Systweak PDF Editor tool for edit, convert, compress your pdf file safely and easily.
I’m not sure if this is a good option…
I checked their website and the price is around $100USD per year.
Also, it’s not even open source…
EDIT: I’m surprised nobody has mentioned Sumatra. It’s free and open source and even comes with a portable version:
It also has a very active community if you need help:
EDIT 2:
The sourcecode is even available.
The portable may be of use to you as it can be run from a USB drive without installation or making any changes to the Registry
isnt sumatra just a PDF reader and not an editor?
It can work as both.
It lists the editing functions here: SumatraPDF documentation
I thought it’d be a great suggestion because of its features that are inline with this community: open source, minimalist design and portable version.