Click inside the text field and type your note. Add as many Sticky Notes as you desire. Save the PDF document when you are finished adding notes by pressing "Ctrl-S" simultaneously.

Adding Sticky Notes and Highlighting a PDF Select the Sticky Note tool from the Annotations panel. Click, or click and drag, on a PDF document page to create a note.

Sticky Notes allows its users to add image attachments inside notes. Here's how to add Pictures to Sticky Notes in Windows 11/10.