Watermark PDF
Files
Select a PDF and enter watermark text to stamp on every page.
Drop files here or
Accepted: PDF
All processing happens in your browser — your files are never uploaded to a server.
About this Tool
Apply passwords, document encryption, or secure text/image watermarks to your PDF documents locally in your browser sandbox.
100% Secure Local Processing Active
This tool runs entirely on your device via WebAssembly and browser Canvas. No files are ever sent to any remote server, ensuring complete data security.
How to Use
Upload the PDF document you want to secure.
Enter a password to restrict access, or specify watermark text overlays.
Click 'Apply Security' and save your encrypted PDF document.
Core Scenarios
Securing HR Wage Agreements and ID Sheets
Encrypt sensitive employee wage sheets and identity proofs with password credentials before transmitting them as email attachments.
Safeguarding Confidential Pitch Decks & Trade Secrets
Apply strong encryption to external partner agreements and investor decks so only authorized recipients can review them.
Protecting Sensitive Financial Records & Tax Returns
Safely encrypt tax returns, banking statements, and audit documentation for secure client storage.
Frequently Asked Questions
No. The encryption process runs entirely inside your browser buffer memory offline. Your passwords never cross the network.
Yes. Standard encryption compliance guarantees full password prompt compatibility on iOS, Android, macOS, and Windows.
No. For cryptographic security reasons, documents cannot be recovered without the valid password. Keep your credentials stored safely.
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