How to merge PDFs into a PDF Portfolio?

I am looking for the functionality that creates PDF Portfolios:

Multiple PDFs packaged into one

The image shows the free adobe reader that can be downloaded from Adobe (duh!). When I open this particular PDF, I was surprised that it has all these Layout, Files and Attachment features. It is definitely not the normal "PDF merge". It is more like a package with multiple PDFs.

Can itextsharp do this? What is the search term for this PDF functionality?

Solution

The term you're looking for is PDF Portfolios. You can create PDFs like this with iTextSharp. Here are a couple of C# examples from the iText book:

Chapter16 - KubrickCollection
Chapter16 - KubrickMovies

If you choose to download the KubrickMovies result file, change the extension to ".pdf". Just noticed it now - will try and fix the error this weekend.