Annotate PDF Online — Free Text Annotation Tool
Add text notes, comments, and annotations to any page of a PDF directly in your browser. Choose the page, position, font size, and text — then download your annotated PDF.
Drop file here or click to browse
Files stay on your device · Up to 200 MB
Drop multiple files or click to browse
Select multiple files · Up to 200 MB each
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How to Use Annotate PDF
Why Use Our Annotate PDF Tool?
Annotating PDFs is essential for review workflows, legal mark-ups, and academic feedback. Our free tool embeds text annotations without needing Acrobat or any plugin.
Frequently Asked Questions
Currently one annotation is added per processing run. Run the tool again on the output to add more.
Yes — text annotations are embedded as real text in the PDF, making them searchable.
Currently flat text overlays are supported. Popup annotations may be added in a future update.
Yes — annotations are added as a new layer on top of the scanned image.