Before you start
A PDF you have permission to edit and a saved original copy.
1. Open and inspect
Open the PDF editor and choose your document. Navigate to the correct page and zoom in until the target area is clear.
2. Use Highlight
Mark the passage and adjust the highlight colour or appearance. Keep the marked region close to the text so nearby lines remain readable.
3. Download a new copy
Review the edited page, open the download dialog and save a separate file. Inspect the downloaded file rather than relying only on the preview.
Check the result
Check both light and dense text areas in the export.
What to know
A highlight draws attention to content; it does not remove it or change the original wording.