Can a watermark stop someone copying my PDF?

No. A visible watermark labels the document but does not prevent copying.

What should I check before saving a watermark?

Check that its size and position do not obscure important text or diagrams.

The watermark adds a visible mark. It is not a tool for securely deleting document content.

Watermark PDF processes the file in your browser; the file is not uploaded for processing.

Add a watermark to PDF pages in your browser. Adjust its placement, export the result and check that the document remains readable.

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Add Watermark

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Maximum file size: 25MB

Mark a document with a label or visual identifier. A watermark is a visible annotation, not a guarantee against copying or reuse.

Can a watermark stop someone copying my PDF?: No. A visible watermark labels the document but does not prevent copying.
What should I check before saving a watermark?: Check that its size and position do not obscure important text or diagrams.
Does watermarking replace the original document text?: The watermark adds a visible mark. It is not a tool for securely deleting document content.
Where does Watermark PDF process my file?: Watermark PDF processes the file in your browser; the file is not uploaded for processing.