Will the highlight survive copy/paste?

The highlight is a drawn rectangle — it stays with the PDF visually. Underlying text is unchanged.

Can I have multi-colour highlights in one run?

Run the tool multiple times with different colours, or process the same PDF through chained runs.

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

Drop a PDF file here

or click to browse

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.