Trite - (of a remark or idea) lacking originality or freshness; dull on account of overuse.
"this point may now seem obvious and trite"
It is part of the English language, and appropriate.
Regarding the publishing of a PDF of A Bridge To Far, I don't see how you have addressed the idea of where the artwork for the twenty year old module is going to come from. Does it already exist in an electronic form suitable for publishing as a PDF, if so then great. Happy days. If not, then what would one see in this PDF production? A4 or A3 sized scans of a used map stitched together to remake the original to then take to a print shop for an A1 version of the map to play on. Would that be worth buying? Maybe. Some people like the idea of printing out a map with the hexes a little bit bigger. Counter artwork would also need to be scanned and made printable in some way that did not look too tacky.
I have bought scans of original manuals for other games, and they are okay, but not usually bookmarked or searchable unless somebody wants to run it through OCR and then mark it up. Some of those look quite good but I can imagine the work involved. But then if you have to re-create the module manual, and completely recreate the map artwork, and the counter artwork (some new counter artwork is very nice), then I wonder where the profit would be in letting all that out as a PDF. I'm guessing it would make more sense to sell the boxed hard copy first, to get back your production costs, then think about an electronic version. Those who have actually published (or republished) historical modules would know the real facts of the matter though.