Merge two PDF documents by overlay


I’m missing one feature in PDFArchitect. Until now you can merge two documents in the format that 1 page + 1 page = 2 pages. I’m missing the function that you can overlay one document with another so that 1 page + 1 page = 1 page.

This would be usefull for merging documents like a letter paper with the document, an address with a stamp, a page with pagenumbers, …

I’d really like to see this feature in PDFArchitect (or PDFCreator). Thanks in advance.