Highlight Text
Apply yellow (or coloured) highlight rectangles to PDF pages — supply coordinates per highlight, output ready for review.
1. Upload your file
How does the Highlight Text work?
Apply highlight-marker style coloured rectangles to a PDF over text you want emphasised. The tool draws semi-transparent rectangles at the coordinates you specify — yellow is the standard highlighter colour, with green / pink / cyan available for multi-colour annotation systems. Each rectangle should match the bounding box of the text line you want highlighted; PDF coordinates are bottom-left origin in points (1 inch = 72 pt).
🔒 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.