Add Professional & Secure Watermarks
Classify your documents and protect your intellectual property with PlatinumPDF Watermark. Whether you need to mark a file as "CONFIDENTIAL", add a "DRAFT" stamp to a proposal, or include your company name for branding, our tool gives you full control. Adjust the opacity, rotation, and placement to ensure your watermark is visible but not intrusive. Best of all, your sensitive files never leave your computer.
Watermark PDF
Stamp text overlays on your documents.
Click or drag files here
Drop PDF to add watermark
Supported formats: PDF
📄 Upload a PDF to get started
Watermark Settings
Approximate preview of your watermark
Powerful Features
Custom Text Stamping
Type any text overlay. Choice of professional fonts and colors to match your document style.
Opacity Control
Make watermarks subtle (ghosted) or bold. Perfect for 'Internal Only' classifications.
Precision Rotation
Angle your watermark at 45 degrees for classic document marking or pick a custom orientation.
Multi-Page Sync
Apply your watermark to every page of a document instantly in one single action.
100% Private
Watermarking happens entirely in your local browser sandbox. No server uploads.
Fast Preview
See a real-time preview of how the watermark sits on your page before downloading.
How to Watermark a PDF
Upload PDF
Select the file you want to protect.
Enter Text
Type your watermark (e.g., 'COPY', 'VOID', 'PAID').
Style
Adjust color, opacity, and rotation to your preference.
Preview
Check the thumbnail to ensure the text doesn't block critical info.
Save
Click 'Add Watermark' to download the processed file.
Who Can Benefit? (15+ Use Cases)
Identify & Classify
- Legal Status: Clearly mark legal drafts as 'FOR REVIEW ONLY' to prevent them from being mistaken for finalized versions during discovery.
- Confidentiality: Stamp sensitive financial data with 'STRICTLY CONFIDENTIAL' to discourage unauthorized photo-sharing or leaking.
- Intellectual Property: Add your name or '© 2024 YourCompany' to portfolios and whitepapers before distributing them online.
- Accounting: Mark invoices as 'PAID' or 'VOID' to provide clear visual status within your digital filing cabinet.
Professional Branding
- Client Previews: Add a subtle 'SAMPLE' watermark to creative work before final payment to protect your production time.
- Organization Identity: Include your business URL or social handle in the margin of every page for better brand recognition when files are shared.
Real-World Scenarios
Scenario 1: The Private Draft
Input: A 50-page internal strategy document.
Action: User adds a red, 30% opacity 'DRAFT' watermark at a 45-degree angle.
Output: A document that everyone knows is not yet finalized, protecting the project's reputation.
Scenario 2: The Creative Sample
Input: A high-res PDF portfolio of design work.
Action: User adds a subtle 'Sample Copy' watermark across the center of each page.
Output: A portfolio safe to share in public knowing the high-res images are protected from direct theft.
Scenario 3: Official Invoicing
Input: An outgoing invoice PDF.
Action: User adds a blue 'PAID' stamp to the bottom right corner.
Output: A professional record that provides immediate visual clarity for the recipient's accounting team.
Frequently Asked Questions
Can the watermark be removed?
Our tool 'bonds' the watermark layer to the PDF. While experts with advanced editing software can sometimes remove PDF layers, it provides a strong visual deterrent for 99% of users.
Will it cover up my text?
You can adjust the 'Opacity' (Transparency) so that your watermark sits lightly on top of the text, allowing the underlying document to remain perfectly readable.
Does it work on every page?
Yes, once you set your watermark, it is automatically applied to every single page in the document in the exact same position.
Is it safe for private files?
Absolutely. Like all PlatinumPDF tools, watermarking is 100% local. Your document never leaves your browser, ensuring complete confidentiality.