You can add notes and audio annotations anywhere on a Photoshop image canvas. When you create a note, a resizable window appears for typing text. When you record an audio annotation, you must have a microphone plugged into the audio‑in port of your computer.
You can also import both kinds of annotations from Photoshop documents saved in PDF or from Acrobat documents saved in PDF or Form Data Format (FDF).
If you need to delete the annotations in your document, select either the Notes or the Audio Annotation tool and click Clear All in the tool options bar. All notes and audio annotations are deleted from your document.
When adding a note to your document, you can use the standard editing commands for your system (Undo, Cut, Copy, Paste, and Select All) to edit the text. (Windows) Right-click the text area and choose the commands from the context menu. (Mac OS) Choose the commands from the Edit and Select menus. You can also use standard keyboard shortcuts for these editing commands.