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Annotate PDF by PrivatePDF lets you annotate pages visually with text, highlights, rectangles, and freehand ink, with undo and flattened export entirely in your web browser. Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded. There is no account, no watermark, and no file-size limit imposed by the platform.
Built for this exact task
Add text, highlights, rectangles, and freehand ink on a large page preview, then drag elements into place.
Add a PDF and open a page.
Choose text, highlight, shape, or ink and place it visually.
Drag elements into position, review, and export.
Questions about Annotate PDF
Yes. Drag the element directly on the page preview.
This tool adds and flattens new annotations; it does not rewrite existing text objects.
Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded.
Yes. PrivatePDF is completely free. There is no account, no watermark, and no artificial daily limit.
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