Highlight PDF Online

Key Features

• Draw to Highlight: Simply click and drag anywhere on the page to highlight text instantly.
• Custom Colors: Choose standard Yellow, Green, Pink, Blue, or pick any custom color.
• Real Ink Effect: Uses blend modes to ensure text underneath remains sharp and readable.
• Client-Side Privacy: PDFs are processed in your browser and never uploaded.
• Continuous Editing: Highlight, download, and keep marking up the document without re-uploading.
• No Watermark: 100% free for personal and commercial use.

How do I use it?

It's simple: Step 1: Upload your PDF. Step 2: Select a color and click-and-drag over the text you want to mark. Step 3: Click "Download PDF" to save your work.

How do I download?

Once you have finished highlighting, simply click the green Download PDF button. The tool will permanently apply the transparent colors and save the file to your device.

Is this tool free?

Yes, this tool is 100% Free. You can highlight as many pages or documents as you need. There are no sign-ups, hidden costs, or watermarks.

What files can I upload?

This tool supports standard PDF Documents. It is perfect for students reviewing notes, researchers marking papers, or professionals reviewing contracts.

Privacy & Security

Your privacy is our priority. Since this tool runs Client-Side (in your browser), your confidential documents are never uploaded to our servers.