Our PDF Watermark tool lets you protect your documents by adding custom text overlays to every page. Whether you need to mark a file as 'DRAFT', 'CONFIDENTIAL', or add your company name for branding, this tool makes it easy. It works entirely in your browser, maintaining your document's original quality while ensuring your files stay private.

Key Features & Benefits

Diagonal Page Stamping

Your custom text is applied diagonally across every single page, making it clearly visible without blocking the underlying content.

No Limits, No Fees

Add watermarks to as many PDFs as you need. There are no registration requirements, no subscriptions, and no hidden costs.

Secure & Private

We prioritize your privacy. Your documents are processed securely and are automatically deleted from our servers shortly after you're done.

High Quality Results

The tool preserves the original resolution and formatting of your PDF, simply adding the watermark layer on top.

How to Use the Add Watermark to PDF Online for Free

Upload your PDF

Drag and drop your PDF file into the upload box or click to select it from your device. We support files up to 200MB.

Enter your watermark text

Type the text you want to appear on your document. Common examples include 'TOP SECRET', 'COPY', or your brand name.

Apply the watermark

Click 'Add Watermark'. The tool will process your file and apply the text diagonally across every page of your PDF.

Download your file

Once the processing is complete, download your new watermarked PDF. Your original file remains untouched on your device.

Practical Use Cases

Protecting sensitive documents

Add a 'CONFIDENTIAL' stamp to internal reports or legal documents before sharing them with third parties.

Marking creative drafts

Identify unfinished work by adding a 'DRAFT' watermark to manuscripts, designs, or project proposals.

Brand identification

Add your company name or website URL to public-facing documents to ensure your brand is always associated with the content.

Digital rights management

Place a copyright notice or 'DO NOT COPY' warning on your digital products to discourage unauthorized distribution.

FAQs

How do I add a watermark to a PDF?

Adding a watermark is easy: 1) Upload your PDF file, 2) Enter your watermark text, 3) Click 'Add Watermark', 4) Download your watermarked PDF. The process is fast, free, and secure.

Can I customize the watermark text?

Yes, completely! You can use any text you want. Popular options include 'CONFIDENTIAL', 'DRAFT', 'APPROVED', 'COPY', your company name, or any custom text that suits your needs.

Is it free to add watermarks to PDF files?

Yes, our PDF watermark tool is completely free with no hidden fees, registration requirements, or limits. Add unlimited watermarks to unlimited PDFs at no cost.

Are my PDF files secure when adding watermarks?

Absolutely. Your files are encrypted during transfer and automatically deleted immediately after processing. We never store, view, share, or access your documents.