Highlight PDF
Draw a highlight over any part of a PDF, in your choice of color, entirely on this device -- nothing is uploaded.
How it works
- Choose a PDF.
- Pick a color, then drag on any page to highlight it.
- Highlight & download.
Features
- Free, no sign-up, no watermark
- Runs entirely on your device -- nothing is uploaded
- Four highlighter colors, mix and match across a page
- Tap a highlight to remove it before exporting
Frequently asked questions
Is highlighting a PDF free?
Yes, completely free with no sign-up, no watermark, and no limit on how often you use it.
Is my PDF uploaded anywhere?
No. Every conversion runs in your browser, on your own device. Your file is never sent to a server or stored anywhere but your device.
Can I remove a highlight after drawing it?
Yes -- tap any highlight to remove it before exporting.
Does the text underneath stay readable?
Yes -- highlights are drawn semi-transparent, same as a real highlighter marker, so the text underneath stays legible.
Does this work on mobile?
Yes -- it works in any modern browser on a phone, tablet, or desktop, with no app to install.