You can attach PDFs and other types of files such as audio or image files to a PDF. If you move the PDF to a new location, the attachments move with it. To attach a file to a PDF,
- On the Review tab, click Attach.
- Click where you want the Attachment markup to appear.
- In File Explorer, select the file you want to attach, click Open.
Optionally, you can move the attachment markup and, or change its properties.