Images and response.outputstream

[modularbeing]

Hello, Im using crystal reports to display account information and there is a digital signature image that is placed on this report. I am rendering the image in memory on the server and streaming it to the client via response.outputstream for security and performace reasons. when I use the outputstream the image tag on the page has no filename. I was wondering if there is a way to specify this so that the browser will place this image in the appropriate place on the report? or will this solution not work and need to store it temporarily on the server and delete it?

Thanks