Edit PDFFree & private

Add watermark

Stamp text or an image watermark over your PDF.

Select your file or drag & drop

Accepted: .pdf• Processed locally

Choose File

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How to use Add watermark online for free

Stamp text or an image watermark over your PDF. MyPDFMate allows you to process documents securely. Most tools run entirely inside your browser using WebAssembly. Heavy conversions are securely processed on our servers with zero persistent logs, ensuring your data remains private.

Select or drag & drop your files into the Add watermark workspace above.
Configure any custom options, page selections, or output settings.
Click Execute Add watermark to process instantly in your browser.
Download your processed file immediately with zero wait time or server queue.

Why choose MyPDFMate for Add watermark?

Privacy-First Processing: Client-side WASM execution or secure server workers with zero persistent logging.
HIPAA & GDPR Compliant: No third-party data processor risks.
Ultra Fast Performance: Instant WebAssembly execution.
Unlimited & Free: No file size limits or paywalls.