Highlight Text

Apply yellow (or coloured) highlight rectangles to PDF pages — drag on the page to mark each line of text you want highlighted.

Your files never leave your browser. All processing happens on your device — nothing is uploaded.

1. Upload your file

How does the Highlight Text work?

Apply highlight-marker style coloured rectangles to a PDF over text you want emphasised. Drag on the page to draw each highlight; the tool renders semi-transparent rectangles at those locations — yellow is the standard highlighter colour, with green / pink / cyan available for multi-colour annotation systems.

🔒 Security & Privacy

All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.

📱 Use it on any device

Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.

⚡ Quick & easy

Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.

🎁 Always free, no signup

Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.

Frequently asked

Upload a PDF, then click and drag on the page to mark out the line of text you want highlighted. Add as many as you need; each one shows up in the list below the canvas.

For heavier PDF workflows

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