PDF & Document Tools
100% Client-Side Highlighting renders directly in your browser. No files uploaded.

Highlight PDF Text Online

Highlight key sentences, study notes, and research passages in PDF files

100% In-Browser & PrivateZero Server Uploads

Online PDF Editor & Annotator

Add text, highlighters, digital images, and shapes directly onto any PDF document.

About Highlight PDF Text Online

Free client-side PDF highlighter. Highlight important lines, legal clauses, and textbook chapters in vibrant neon yellow, green, cyan, or pink with 1-click download.

Key Capabilities & Features

  • Semi-transparent highlighter pens in Yellow, Green, Cyan, and Pink
  • Adjustable highlighter stroke thickness
  • Page-by-page review and eraser undo
  • Crystal-clear vector PDF export

How to Use Highlight PDF Text Online

1

Choose PDF

Upload your study notes, contract, or paper.

2

Highlight Text

Drag highlighter pen across key sentences.

3

Download PDF

Save your highlighted document.

Privacy & In-Browser Execution Guarantee

Highlighting renders directly in your browser. No files uploaded.

Frequently Asked Questions

Does highlighting obscure the text underneath?

No. The highlighter uses semi-transparent blending so the original text remains completely legible.