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How to Add a Password to a PDF for FREE | Lock and Protect PDF Files (2025 Guide)
🔒 Want to password-protect a PDF without paying for Adobe Acrobat? In this easy step-by-step tutorial, you'll learn how to use LibreOffice Draw, a 100% free tool, to secure your PDF with a password and control its access permissions. 📂 LibreOffice Draw lets you add both open passwords (to restrict who can view the file) and permissions ...
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