PDF Highlight
Highlight important parts of a PDFmark key lines before you share
Mark contracts, totals, notes, or sections in a PDF directly in your browser. Export a highlighted PDF with no upload and no signup.
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Frequently Asked Questions
Can I highlight text in any PDF?+
Yes. The tool works on text-based PDFs. Scanned PDFs require OCR first to make the text selectable before highlighting.
Does highlighting modify the original PDF file?+
No. Your original file is not modified. The tool creates a new annotated PDF with highlights applied on top of the original content.
Can I choose highlight colors?+
Yes. Multiple highlight colors are available including yellow, green, blue, pink, and orange.
Is the PDF highlight tool free?+
Yes. Completely free with no signup and no upload to any server.
Does it work on mobile?+
Yes. The PDF highlighter works on iPhone, Android, and tablet browsers.