Protect PDF

Protect PDF files with a password in seconds. Add encryption and prevent unauthorized access using Nest PDF — 100% free, fast, and secure.

Drag & drop files here or click to select (Max: 100MB)

Your files are safe !

We use the best encryption methods to protect your data.

All documents are automatically deleted from our servers.

How to Protect a PDF Using NestPDF

Upload Your PDF File : Click “Upload PDF” and select the file you want to secure.

Set Your Password & Permissions : Add a password, choose restrictions like disable copying or printing.

Download Your Protected PDF : Click “Protect & Download” — your file is now encrypted and secure.

Password-Protect PDF — Simple & Secure

Add Password to PDF Online

No software needed

Customize Permissions

Prevent printing, editing, and copying

Free & Unlimited

Use without signup or fees

AES 256-bit Encryption

Military-grade file protection

Mobile & Desktop Friendly

Works across all devices

No Ads or Watermarks

Just fast, clean protection

What our customers are saying

Aisha K

Secured confidential files with ease

I often work with sensitive documents, and NestPDF’s PDF protection tool makes it so easy to set up a password. Now, I can share files with confidence, knowing they’re safe.

Jordan T

Simple, fast, and secure

Needed to lock down a project report before sharing with external vendors. NestPDF’s Protect PDF tool worked like a charm. Took less than 30 seconds!

Jonas W

Perfect for confidential legal documents

Protecting client files is a must. NestPDF’s protection tool is incredibly reliable and ensures that sensitive information stays secure. No more worrying about unauthorized access.

Elena M

Peace of mind before sharing my drafts

Before sending my eBook draft to editors, I protect it with a password using NestPDF. It’s reliable and doesn’t mess with formatting. So grateful!

Sarah M

I feel more secure sharing my artwork

I use NestPDF to add password protection to my digital art portfolios before sharing them with clients. It’s easy to use and gives me peace of mind knowing my work is secure.

Luis V

Efficient and hassle-free PDF protection

I needed to protect my business proposal before sending it to potential investors. NestPDF made it simple to add a password and restrict editing. Secure, easy, and effective!

Frequently Asked Questions

Yes! Nest PDF’s Protect PDF tool is completely free and unlimited.

Absolutely. We use industry-standard AES 256-bit encryption to lock your PDFs.

Yes. You can restrict printing, copying, and even editing while setting a password.

Yes. All files are processed with encryption and auto-deleted after 30 minutes.

Yes, our tool is fully mobile-friendly and works on any browser.

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LOCK PDF

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