Highlight important text, mark key sections, and annotate your PDF directly in your browser. No watermark on the final file. No account needed. Your PDF never leaves your device.
or drop PDF here
Highlighting is one of the most common ways to work with a PDF. Whether you're reviewing a contract, studying for an exam, or marking up a report before a meeting, adding color to text makes your most important information impossible to miss.
When you annotate a PDF for review, highlights let you flag sections that need attention without editing the source text. Mark a clause in a legal document, emphasize a paragraph that needs a rewrite, or color-code feedback for different team members, all without changing the original content.
Students and researchers use text highlight tools to break dense documents into scannable sections. Color-coded markup, such as yellow for key definitions, green for supporting evidence, and orange for follow-up, makes it faster to return to the material and recall what mattered.
Sharing an annotated PDF is faster than writing a separate summary. Highlight the relevant passages, save the marked-up file, and send it. Your collaborator sees exactly what you're referring to, with no ambiguity.
Most free online PDF tools add a watermark to your file or force you to create an account before you can save your work. itsmypdf does neither.
More importantly — your PDF never leaves your device. The highlight tool runs entirely in your browser. Here's what that means:
This matters when you're working with sensitive files: legal agreements, financial reports, medical records, or anything you wouldn't want stored on someone else's server. You open the file locally, make your annotations, and save the result directly to your device. That's it.
No signup. No watermark. No upload. 100% free, every time.
Highlighting your PDF takes three steps:
Open your PDF — click the button above or drag your file into the drop zone. The file loads in your browser instantly.
Select and highlight — choose your highlight color, then click and drag across any text to mark it. Switch colors to annotate different sections. You can also highlight areas and shapes, not just text.
Save to your device — when you're done, save the annotated file directly to your device. The tool adds no watermark. The file is yours, exactly as marked.
The tool supports:
Text highlight
select any text in the PDF and apply a highlight color. Works across single words, sentences, and multi-line paragraphs.
Area highlight
highlight any part of the page, including images, diagrams, or sections with non-selectable text.
Multiple colors
choose from yellow, green, blue, pink, and orange to color-code your annotations.
Undo and clear
remove individual highlights or clear all markup before saving.
