brent My situation is different, I simply downloaded the draft, didn't modify anything.
On the other hand, every year I have to fill out forms for my daughter's school. I download the editable PDF with Firefox, I fill it out with Okular, and send it to a print shop (I have no printer at home).
I seldom use a browser to open PDFs, I prefer Okular for both Solus and Windows (yes, there is a Windows version of Okular, I recommend it).