Security hub
Protect, unlock, sign, and brand PDFs without leaving your browser.
If you need to lock a file before sending, remove a password from a document you own, add a watermark, or apply a signature, these tools help you do it privately and quickly without uploading the file to a third-party server.
Top intent
Protect PDF with password
Top intent
Unlock PDF without password
Top intent
Sign PDF online
Password-protect your PDF to prevent unauthorized access.
Remove password protection from PDFs you own and have access to.
Add text or image watermarks to every page of your PDF.
Add your signature to any PDF — draw, type, or upload.
When to use these tools
Before sending documents
Use Protect PDF to add a password so only the intended recipient can open the file.
When you need branding
Use Watermark PDF to add a text or image mark across pages without altering document content.
For your own documents
Use Unlock PDF only when you own the file or have permission to remove password reuse restrictions.
For approvals and contracts
Use Sign PDF to add a signature or approval mark directly on a document before sharing.
Trust and compliance
Why people choose local PDF security tools
Sensitive files stay local
Everything is handled inside the browser, which reduces exposure for contracts, invoices, and legal files.
No private account needed
Open the tool, process the PDF, and download the result without creating a profile or sharing email data.
Useful for approvals
Sign or watermark a file before sending it to a client, vendor, or internal team without leaving the app.
Simple for recurring tasks
Security workflows are fast when you need to lock, sign, or mark documents before distribution.
Frequently asked questions
Is password protection enough for confidential PDFs?
It is a strong first layer for sensitive files and is widely used for document sharing. For highly regulated workflows, combine it with clear distribution controls and access limited to trusted recipients.
Can I add a watermark without changing the original content?
Yes. Watermark PDF adds a visible mark across the page while preserving the original document content and layout.
When should I use Sign PDF instead of a scanned signature image?
Use Sign PDF when you want a cleaner workflow that keeps the signature directly inside the PDF, ready for sharing or printing.