Maybe re-envision the entire thing from a PDF file to a small WordPress based website? Then each lightsaber gets the dedicated page and image gallery it deserves, and you don't have to worry about losing image quality, as you then have the full-sized photo right there on the webpage. I suggest this, because it's what I do for the Jurassic Park Encyclopedia (Jurassic-Pedia) that I, and others like
SickleClaw, help run, and I've generally found it to be the simplest way to just dump a lot of visual information into one place that's both easily publicly assessable, and simple to edit and format. It might end up costing a little to maintain the webpage name, but you could also add a donation widget to the front page to help with costs associated with the website as well as obtaining information (vintage saber parts don't run cheap). Additionally, you could always expand this to other classic Star Wars prop info like Han's blasters, E-11s, helmets, etc.
As for concerning yourself with who wants what info out there, I'd say tell 'em to suck laser bolts. I've always despised gatekeeper fans who like to hoard knowledge to maintain some kind of feeling of superiority over the rest of the fandom. Information is meant to be shared, not hoarded for internet points. I'd say put everything you can that's not locked behind an NDA in there, and screw the whiners.