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أدوات PDF

تعديل PDFدمج PDFsتقسيم PDFتحويل إلى صورإضافة علامة مائية لـ PDFتدوير PDFإزالة الصفحاتتعديل البيانات الوصفيةمعاينة البيانات الوصفيةتغيير ترتيب الصفحاتضغط PDFحماية PDF بكلمة مرورإلغاء قفل PDFتحويل الصور المجمعة إلى PDF

About Protect PDF

Secure sensitive PDF documents by adding password encryption. Set a password that must be entered to open the file, and optionally restrict printing, copying, or editing with a separate permissions password.

Key Features

  • Encrypt PDF with a user open password
  • Set separate permissions password to restrict printing/copying
  • Supports 128-bit and 256-bit AES encryption
  • Compatible with all PDF readers (Adobe, Preview, Chrome, etc.)
  • Entirely browser-based — your file is never uploaded

How to Use

  1. Upload the PDF you want to password-protect
  2. Enter your desired password (and confirm it)
  3. Optionally set permissions to restrict printing or editing
  4. Click "Protect PDF" and download the encrypted file

Frequently Asked Questions

What happens if I forget the PDF password?

Password-protected PDFs cannot be opened without the correct password. Store your password in a secure password manager.

What encryption strength is used?

The tool uses 256-bit AES encryption by default, which is the industry-standard protection level for PDFs.

Can I restrict printing but still allow opening?

Yes. Set an open password for access, and set a separate permissions password to restrict printing, copying, or editing.

Will the protected PDF work in all PDF readers?

Yes. Password-protected PDFs are a standard feature supported by Adobe Acrobat, macOS Preview, Google Chrome, and all major PDF applications.

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