Highlight PDF Text
Draw translucent highlight boxes over a region. Runs entirely in your browser, so your data never leaves your device.
Drop a PDF here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Highlight PDF Text
- 1. Load the PDF and pick a page. Drop your document into the workspace and select the page containing the text you want to highlight, using the thumbnail grid to navigate.
- 2. Draw the highlight region. Drag a box over the exact text or area you want marked. The highlight sits on top of the page content within that region only.
- 3. Set color and opacity. Choose Highlight color to match the standard marker colors readers expect, and set Opacity so the underlying text stays fully legible through the highlight.
- 4. Download the marked-up PDF. Save the file once the highlight is placed. It appears as a translucent box over the selected area in any PDF viewer.
When to use Highlight PDF Text
Highlight PDF Text draws translucent highlight boxes over a region of a page, the digital equivalent of a marker pen. It is for calling attention to specific passages in a document without editing the underlying text.
- Marking key clauses in a contract review. A lawyer reviewing a contract wants to flag the clauses that need discussion before signing. Highlighting them in yellow makes those sections jump out to the next reader.
- Calling out a figure in a financial report. A specific number in a financial report needs attention before a meeting. Highlighting it in a bright color ensures nobody skims past it.
- Marking up study material. A student reviewing lecture notes saved as PDF wants to highlight the key definitions before an exam, the same way they would with a physical printout.
About the Highlight PDF Text tool
Highlight PDF Text runs as plain JavaScript in your browser tab, with no server behind it. Draw translucent highlight boxes over a region. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's PDF Tools section, 92 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with 2 settings, including Highlight color and Opacity, and the result refreshes the moment you change one. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Highlight PDF Text cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
Which files does Highlight PDF Text accept?
It accepts PDF documents. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.