Hi @MarieAS ,
not a solution but an additional question, sorry: we have clients with the same requirement: see and browse the pdf, but do not download/print it.
As far as i know is it like this: when the pdf content shall be visible within the browser, the pdf content has somehow to be in the browser. When it is in the browser, it already is at the client.
May be i am wrong with this interpretation of pdf.
I responded to the client, that Adobe Digital Editions might be the right response to this question. Because i know from my public library, when i loan a book, its sometimes forbidden to save or print it. So, This might be the right way as the pdf then would be encrypted at the client.
But to be honest: i did not follow that idea as most clients did not request it anymore (or made a legal agreement with the users that its forbidden to diestribute the pdf) 🙂
So, sorry for the long text but this is really a frequent request from my clients, too 🙂
Have fun,
Christian