I’ve been a user of Master PDF for years now. It’s my go-to for PDF markup in Linux. Their yearly renewal can be kinda wonky, but their customer service has been excellent.

Does this help? https://superuser.com/questions/527495/how-to-mount-partition-with-spaces-in-path

Looks like you need \040 in place of the space.

Honestly, I would just change the name of the mount directory so there’s no space.

Ubuntu when they first switched to Unity. I had been running Ubuntu for 2 or 3 years at that point, but I was already thinking about switching to Debian at the time. I hobbled along for a few weeks on that first version of Unity, but I didn’t like what I was seeing. I took the plunge into Debian, thinking, “If I’m going to have to learn something new anyways, I might as well try switching.”

I was going to say use the old timey fixed width typewriter fonts that the US Army Corps uses (PDF page 5 and beyond), but I guess that they’ve switched to Times New Roman.

Maybe use open source fonts like DejaVu and Liberation?