How to save a pdf with multiple slides per page

[biffmeister]

I have multiple pdf files that I would like to combine but for some of those files, there were originally from powerpoint. For those files, I would like to change the pdf so that there are multiple slides per page. I don't have a copy of the original powerpoints. I am trying to find an easy way to do this because I have at least a hundred pdfs to do. Thank you!

[Sara_Forsberg]

[discussion moved to Creating, Editing & Exporting PDFs forum]

[a_C_student]

You could print a PDF to the Adobe PDF printer, and select multiple Pages per Sheet on the Layout tab of the printer Properties dialog. Printing a PDF to PDF is generally frowned upon, but once it a while it comes in handy. It could have some unwelcome side effects though like wiping out your carefully crafted accessibility tags, bookmarks, and some document properties.