How do I force the browser to get an updated PDF file generated from an SSRS report?

Question

I have a web page that downloads a pdf version of an ssrs report through a link. However when I make changes to the data, the browser pulls up the same pdf file as before without the updated information (the pdf file stored in the temp folder). If I then go to another browser and download the PDF I get the new version, but the other browser still gets the old version. How can I force the browser to download a new version of the pdf report?

The url I use to create the pdf is below:

http://servername/ReportServer/Pages/ReportViewer.aspx?/MyReport/&rs%3ACommand=Render&ReportID=123456&rs%3AFormat=PDF

Answer 1

Any one of the flowing will work.

• Modify the report viewer .aspx to set the content expiration to immediate.
• Modify IIS to set the content expiration to immediate.
• Configure your browser to check for newer version of the page or to not cache pages.

Answer 2

I used the clearsession parameter to get a fresh pdf with updated information, it looks like this in the url:

http://servername/ ReportServer/Pages/ReportViewer.aspx?/MyReport/ &rs:Command=Render&ReportID=123456 &rs:Format=PDF &rs:ClearSession=true

Managing Report Sessions on a URL