You can attach all types of files to your MobiPDF file, including PDFs, audio, or image files. If you move the PDF to a new location, the attachments move with it.
1. Open your MobiPDF file, click Comment tab.
2. Click Attach.
3. Left-click where you want the Attachment markup to appear.
4. In File Explorer, select the file you want to attach, click Open.
*Optionally, you can move the attachment markup and/or change its properties.
*You can find all the attachments if you click on the paper clip icon on the left.