Drop your PDF to encrypt
or click to browse from your device
Password Protect PDF
Encrypt your PDF with AES-256 security. Set passwords, control permissions, and keep sensitive documents locked — all in your browser.
16 security features in one tool
Enterprise-grade protection with granular permission control — all in your browser.
User Password (Open Password)
Set a password required to open and view the PDF. Nobody can see the content without entering the correct password.
Owner Password (Permissions Password)
Set a separate owner password to control what others can do with the document — print, copy, edit, and more.
AES-256 Encryption
Industry-standard AES-256 bit encryption (PDF 2.0 / R6). The strongest available security for your sensitive documents.
Real-Time Strength Meter
Watch the password strength meter change from weak to strong as you type. Ensures you pick a secure password before encrypting.
Password Confirmation
Type your password twice to prevent typos. The tool validates that both entries match before allowing encryption.
Show / Hide Password
Toggle password visibility with a single click. See what you're typing or hide it for privacy in public spaces.
Control Printing
Allow or block printing entirely. Choose between high-resolution printing or complete print restriction.
Control Copying
Prevent text and image selection so nobody can copy content out of your protected PDF.
Control Modification
Lock the document to prevent editing. No changes to text, images, or structure without the owner password.
Control Annotations
Restrict or allow comments, highlights, and markup. Perfect for finalized documents that shouldn't be marked up.
Control Form Filling
Decide whether users can fill in form fields. Keep forms interactive or lock them down completely.
Control Document Assembly
Restrict inserting, rotating, or deleting pages. Prevent document assembly without your permission.
Batch Protect Multiple PDFs
Queue several PDFs and protect them all with the same password and permissions in one operation.
File Details Display
See file name, size, and page count before encrypting. Know exactly what you're protecting at a glance.
Instant Download
Get your encrypted PDF immediately after processing. No waiting, no email, no queues.
100% Client-Side Privacy
Your PDF and password never leave your browser. Encryption happens on your device — zero uploads, zero tracking.
Protect your PDF in 3 steps
No tutorials needed. Upload, set password, download.
Upload your PDF
Drag & drop your PDF file or click to browse. Add multiple files for batch protection.
Set password & permissions
Enter a user password, optionally an owner password, choose encryption level, and toggle permissions.
Protect & download
Click protect and your encrypted PDF is generated instantly in your browser. Download immediately.
Who uses PDF Password Protect?
From lawyers to HR managers — anyone handling sensitive documents that need encryption before sharing.
Confidential Contracts
Protect NDAs, employment agreements, and vendor contracts with AES-256 encryption before sharing.
Financial Statements
Lock down bank statements, tax returns, and audit reports so only authorized recipients can open them.
Legal Filings
Encrypt court documents, discovery materials, and case files with granular permission controls.
Academic Records
Password-protect transcripts, diplomas, and exam papers to prevent unauthorized access or tampering.
Internal Reports
Secure internal memos, strategy documents, and board decks with print and copy restrictions.
Travel Documents
Protect passport copies, visa applications, and insurance documents when emailing or storing online.
Your password never leaves your browser
Password Protect PDF runs 100% client-side. Your PDF and your password are processed entirely on your device. Unlike other tools that upload your files to remote servers for encryption, PDFly does everything locally. Your sensitive documents — contracts, medical records, tax forms — stay completely private. No servers to breach, no data to steal, no password to intercept.