The PDF File has been inserted into an Excel sheet as an object similar to a chart or any shape. We can drag it or resize it as we want. Repeat the same steps to insert more PDF files into the sheet.

A printout is a picture of the document, so you can reposition and resize it after inserting it into the note. Inserting printouts into OneNote notes takes less time than it would take you to ...

If you wish to automatically have Outlook reduce the image attachment size without asking you, follow the instructions laid down in this post.