pdf - Is it possible to protect our documents from getting copied using HTML 5 or general Web technologies?

Question

I want to develop a Web App for Mobile users, which will provide users with documents for users to view. I want to ensure that the documents once downloaded to temp folder needs to be deleted once user closes the window. Is there any option for this in HTML 5?

Is there any provision to disable copy/paste options for when browser shows the specific pdf documents or MS office documents?

UPDATE1: Two things I need to know if possible:

1. Ability to delete files through an API
2. Disable copy, paste option through Browser for Documents. (might seem like a fantasy)

Answer 1

I don't believe you can delete user cache/temp folder via web, but you can protect your pdf and doc files with password and disable copy/paste and print function.