Highlight PDF

New

Highlight, underline, and strikethrough text in any PDF document. Choose from multiple highlight colors to color-code important passages, mark review items, flag action items, and categorize content. Highlights are saved as standard PDF annotation marks visible in all PDF readers. Perfect for studying, document review, contract analysis, and research.

Highlight PDF

Highlight, underline, and mark up text in PDF documents.

Upload File

or drag and drop here

Upload your PDF to open it in the highlight editor. Select text and apply color highlights, underlines, or strikethroughs.

How to Use Highlight PDF

  1. 1Upload your PDF file
  2. 2Select the highlight tool and choose a color
  3. 3Click and drag over text to highlight it
  4. 4Switch colors to categorize different sections
  5. 5Download the highlighted PDF

Your Privacy is Protected

Highlight PDF runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.

No server uploadNo account required100% freeWorks on all devices

Frequently Asked Questions

What colors are available?

Yellow, green, blue, pink, and orange highlight colors are available.

Can I also underline or strikethrough?

Yes, underline and strikethrough text markup tools are available alongside highlighting.

Why Use This Tool?

Files never leave your device
No upload to any server
Instant processing in browser
100% free, no account needed

Tags

pdfhighlightunderlinemarkuphighlight pdf online

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