How do I highlight or add comments to a PDF?
Use the inline PDF editor to mark a passage or place a written note directly on a page. The result downloads as a new PDF and your original remains unchanged.
Use the toolEdit PDF→Highlight with a marker
Open a PDF, choose Highlight and draw over the text or area just like using a marker pen.
Place a note
Choose Add note, enter your comment and click the relevant position on the page. Keep comments concise so they remain easy to read.
Check the download
Open the edited PDF and check every mark before sharing it. Highlighting does not permanently hide text.