I display receipt in both HTML and printer-friendly version. HTML version does jQuery tabs, etc, while printer-friendly has zero scripts and external dependencies, no master lay
If you can have the HTML in memory then you can convert it to PDF. I've once did something similar using xhtmlrenderer. It is a JAVA framework that bundles iText and that is capable of converting an HTML stream into PDF. As it is written in JAVA I've used the ikvmc.exe to convert the jar file into a .NET assembly and use it directly from managed code.