Edit PDF

Highlight

Drag across the passages you want to stand out and pick the colour and strength.

This tool runs entirely in your browser. Your document is never uploaded.

Drop a PDF to highlight

.PDF · up to 50 MB per file · single file

Files are processed in your browser and never uploaded.

How to highlight text in a PDF

Mark up the important passages in a PDF with coloured highlights.

  1. 1Upload the PDF.
  2. 2Choose the highlighter and a colour.
  3. 3Drag across the passages you want to mark.
  4. 4Export and download the highlighted document.

Why use Highlight

  • Flag key clauses before a meeting.
  • Study and revise without printing.
  • Different colours for different themes.
  • Highlighting runs entirely in the browser.

Privacy and how your file is handled

This tool runs in your browser using JavaScript and WebAssembly. The file you choose is read locally by the page and is not uploaded to PDFSolution servers.

Read more in our security overview and privacy policy.

Highlight — frequently asked questions

How do I highlight a PDF?
Open the document, pick the highlighter and drag over the area you want to mark.
Does it work on scanned pages?
Yes, because highlights are drawn over the page area rather than attached to selected text.
Can I change the colour?
Yes, choose a colour before you highlight.
Will highlights appear in other readers?
Yes, they are exported into the page content.
Can I remove a highlight later?
Remove it in the editor before exporting; afterwards it is part of the file.

Related PDF tools

Browse the full PDF tools directory or read our PDF guides and how-tos.