Military-Grade AES

Lock your PDF with 128-bit or 256-bit AES encryption schemas. Make files completely secure.

Granular Controls

Prevent unauthorized users from editing, copying text, or printing your PDF content.

Safe Deletion Rules

All documents processed on our servers are permanently deleted within 1 hour.

Password Protect PDFs Online
100% Free & Secure

Encrypt your PDF documents to protect sensitive records, financial sheets, and confidential information from unauthorized opening, modification, or copying.

What is PDF Protection?

PDF Protection is the process of applying encryption parameters to a PDF document to restrict viewing or editing permissions. By embedding password strings into the document header structure, you ensure that only recipients with the authorized key can decrypt and display the contents.

Our encrypter integrates advanced AES cryptographic logic to build robust passwords into your PDF files. This security applies to any standard reader (Adobe Acrobat, Chrome/Firefox, Apple Preview), guaranteeing complete compliance and confidentiality across all systems.

How to password-protect PDFs in 3 Simple Steps

01

Select PDF

Select or drop the PDF document you wish to encrypt into the workspace above.

02

Configure Password

Type in a strong password. Be sure to memorize it so you can open the file later.

03

Encrypt & Download

Click the add password action to encrypt the file, then download the locked document.

Key Benefits & Features

Robust AES Encryption

Lock down your sensitive reports, statements, or contracts using highly secure, industrial standard cryptographic algorithms.

Comprehensive Restrictions

Control viewer authorization. Encrypted PDFs prevent users from extracting, editing, or printing text unless they have the password.

  • Protects layout and vector graphics from copy or edit access.
  • Zero account creation or subscriptions required to protect documents.
  • Files are automatically deleted within 1 hour for high privacy compliance.
  • Touch-responsive buttons and focus rings for seamless keyboard navigation.

Frequently Asked Questions

How do I password-protect a PDF?

Upload your PDF, enter a strong password in the prompt box, and our security engine will encrypt the file. Anyone who attempts to open the document thereafter will need the password to view it.

What level of encryption is used for PDF protection?

Our security engine uses industry-standard 128-bit or 256-bit AES encryption to lock and secure your PDF documents, providing high-grade protection against unauthorized decryption.

Can someone bypass the password by converting the PDF?

No. Standard converters will prompt the user to input the password before converting, and they cannot bypass the built-in PDF security dictionary protection.

How long are my files stored on your servers?

All uploaded documents are processed securely and deleted automatically from our servers within 1 hour after conversion. We do not keep or read your files.

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