My apologies for resurrecting such an old post, but I am looking for a similar solution as Gary's question, and have not found any answers yet.

In response to Daniel's suggestion of using javascript, I have found some posts indicating that it is indeed possible to inject javascript into SSRS (such as these from MSDN:

is-it-possible-to-embed-javascript-inside-an-ssrs-report

embed-javascript-into-ssrs-report)

However, they do not indicate how you could use it for this particular problem (i.e. hiding of URLs); could anyone provide some practical examples of the javascript code to use?

Alternatively, how would one do this with an HTML document (Daniel's second suggestion)?