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Add Watermark

Protect your PDF documents

Upload your PDF to add watermark

Drag & drop a PDF, or click to browse

Choose File

PDF files only · Max 50 MB

Processed locally in your browser
Never uploaded to any server
Auto-deleted after session
Instant processing
Pro Tip

Did you know? You can double-click any text in the editor to edit it directly. PDFino automatically matches the original font style!

Add text watermarks to any PDF file. Customize your watermark text and apply it instantly — all processed locally.

100% Browser-Based
Files Never Leave Your Device
No Installation Required
Fast Processing
Mobile Friendly
Secure PDF Editing
Privacy Focused
100% Browser-Based
Files Never Leave Your Device
No Installation Required
Fast Processing
Mobile Friendly
Secure PDF Editing
Privacy Focused

How to add watermark

1

Upload

Select your PDF files from your computer or drag and drop them into the upload area.

2

Process

Wait a few seconds while our system handles the add watermark.

3

Download

Once finished, download your new PDF file directly to your device for free.

Protect Your PDFs with Custom Watermarks

Adding a watermark is an effective way to establish ownership, prevent unauthorized use, and clearly mark the status of a document (like "DRAFT" or "CONFIDENTIAL"). Our free PDF watermarking tool allows you to quickly stamp custom text across your document. And because we respect your privacy, your PDF is watermarked directly in your browser, meaning it is never uploaded to any cloud server.

Frequently Asked Questions

Upload your document, type the text you want to use as a watermark (like 'CONFIDENTIAL' or your company name), and click 'Add Watermark'. A stamped PDF will be generated instantly.