Highlight PDF Online

Easily highlight text in your PDF documents with our free online tool. Select text and apply different colors to emphasize key points. Perfect for students, researchers, and professionals reviewing documents. No software installation needed.

Free • No signup • TLS encrypted

Drag & Drop Your Files Here

Support for PDF, Word, Excel, PowerPoint, and Images. Secure processing up to 100MB.

PDF DOC DOCX RTF PPT PPTX JPEG JPG PNG JFIF BMP WEBP TIFF GIF HEIC HEIF XLS XLSX CSV TXT ODT MD DXF DWG XPS OXPS AI CBZ CBR DJVU DJV EPUB MOBI AZW AZW3 FB2 CHM PAGES WPS HWP XML EML

Why use PdfFixNow?

Easy Highlighting

Simply select the text you want to highlight and choose your color.

Multiple Colors

Use different colors to categorize or prioritize information in your document.

No Sign-up Required

Start highlighting immediately without creating an account or providing an email.

Secure & Private

Your files are processed securely and deleted automatically after 2 hours.

Works Everywhere

Highlight PDFs on any device—desktop, tablet, or mobile—directly in your browser.

Free to Use

Highlight as many documents as you need completely free of charge.

Frequently Asked Questions

Upload your PDF, select the text you want to highlight, choose a color, and save your changes.

Yes, our PDF highlighter is 100% free to use.

Yes, you can undo your actions before saving the final document.

Absolutely. We use SSL encryption and delete files permanently after 2 hours.

Highlight PDF Online

Why use PdfFixNow?

Frequently Asked Questions

How do I highlight text in a PDF?

Is it free?

Can I remove highlights?

Is my data safe?