Hello Nayeem,
sorry for delay but have been off for a while 😀
1. Might be something like that, yes. We normally let customers directly download PDF via a ‘Download’ button (it’s then a browser’s download), but if that was via a one time link to donwload document then it might anyhow fit client’s request in some way. Even if need would be after it has been downloaded, that is I download from one time access link but then send downloaded PDF to others (but maybe onetime access works differently…)
2. if this could help in preventing or reducing willing to share then yes! And meanwhile seen there’s PDF Stamper add-on which seems does right this with image or customer’s details or both, and also include options to prevent copy of content (other client’s request), its amends and others.
Thank you