Sj480 Sj480

Protect PDF Online

Secure your PDF documents with password encryption.

Drag and drop your PDF here

or

Max file size: 50MB

100% Secure & Private. Files deleted automatically.

Why Password Protect PDF?

Confidentiality

Ensure sensitive data like contracts, bank statements, or personal records (GDPR compliance) are only accessible to intended recipients.

Legal Protection

Prevent unauthorized copying, editing, or printing of your intellectual property or legal agreements.

SJ480 vs. Others

Feature SJ480 Website 1 Website 2
Cost Free Paid Limited
Encryption AES-128 AES-256 AES-128
No Registration Yes No Yes
File Privacy Auto-Delete 1hr Cloud Storage Auto-Delete

How to Password Protect a PDF

Add strong encryption to your PDF documents in seconds. Follow these steps:

  1. Upload PDF: Select the file you want to secure.
  2. Set Password: Enter a strong password. You will need this to open the file later.
  3. Encrypt: Click "Protect PDF". We will encrypt your file securely.
  4. Download: Save your protected PDF. The password is now required to view it.

Troubleshooting Common Issues

I forgot my password!

For security reasons, we cannot recover lost passwords. If you lose the password, the file cannot be opened.

Is encryption strong?

Yes, we use standard encryption. However, very weak passwords (e.g., "1234") are easier to crack, so choose a complex one.

Frequently Asked Questions (FAQ)

Is this PDF protection tool free?

Yes, Sj480 allows you to password protect your PDF files completely free of charge.

Can you open the file if I lose the password?

No. We do not store your password or your file content. Once encrypted, only someone with the correct password can open it.

Is it safe to upload confidential documents?

Yes. All file transfers are encrypted via SSL. Your uploaded files are automatically deleted from our servers permanently after one hour.

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Popular Protect PDF Searches

Many users search online for tools like protect PDF, password protect PDF, encrypt PDF, lock PDF, secure PDF online, add password to PDF, PDF password protection, protect PDF online free, 11zon protect PDF, iLovePDF Protect PDF, Smallpdf Protect PDF, PDFGuru Protect PDF, Adobe Protect PDF, PDF24 Protect PDF, Sejda Protect PDF, PDF Candy Protect PDF, Xodo Protect PDF, and best PDF password protector. SJ480 provides a fast, secure and completely free PDF protection tool that lets you add password security to your PDF documents and prevent unauthorized access.

Whether you're securing contracts, financial reports, invoices, certificates, resumes, business documents or personal files, SJ480 allows you to password-protect your PDFs in just a few clicks. Your encrypted PDFs remain accessible only to users with the correct password, helping keep confidential information safe.

  • Password protect PDF files
  • Encrypt PDF documents
  • Add strong password security
  • Protect confidential documents
  • Secure contracts and legal files
  • Lock PDF before sharing
  • Unlimited PDF protection
  • No watermark added
  • No registration required
  • Works on Windows, Mac, Android and iPhone
  • Secure browser-based processing
  • Free online PDF password protection

SJ480 is perfect for protecting business documents, legal contracts, invoices, financial records, HR files, academic certificates, medical reports, research papers and personal documents before sharing them through email, cloud storage or messaging platforms.

If you've previously used iLovePDF Protect PDF, Smallpdf Protect PDF, PDFGuru Protect PDF, 11zon Protect PDF, Adobe Protect PDF, PDF24 Protect PDF, Sejda Protect PDF, PDF Candy Protect PDF, or Xodo Protect PDF, SJ480 offers a reliable and completely free alternative for password protecting PDF files without subscriptions, watermarks or daily usage limits.

Free Alternative to iLovePDF, Smallpdf and PDFGuru

SJ480 is a free alternative to many popular PDF protection tools. Whether you need to secure confidential business files, legal paperwork, financial documents or personal PDFs, SJ480 provides fast, secure and unlimited PDF password protection. Add strong encryption to your PDF files online without software installation, hidden charges or account registration, making SJ480 one of the easiest ways to protect PDF documents for free.