Denzel's page

So if someone owns a book and only needs a single page from it (like when traveling to a convention), they are not allowed to bring in a scanned version of the page? They have to buy the pdf in addition to the book?

I haven't found an answer to this in other posts...maybe I am bad at searching since this has probably been asked before.

Question: If a PC uses a potion of cure light wounds that was gained from treasure found during a module, is the gold value of the potion subtracted from the total GP received at the end of the module?

I don't see treasure broken up independently so I don't think it would be I want to be sure since I have seen another campaign do this.