PDF Password Protector
Encrypt your PDF with a password — works entirely offline in the browser.
Secure your confidential PDF files effortlessly with FreeToolConvert’s Free Online PDF Password Protector. Our powerful tool lets you add a password to PDF files online to prevent unauthorized access, copying, or editing. With FreeToolConvert, you can protect your PDF files for free in just a few clicks — no installation or registration required. Simply upload your document, set a strong password, and download your encrypted PDF instantly. All files are processed securely and automatically deleted after use to ensure privacy. Whether for business reports, contracts, or personal documents, FreeToolConvert’s PDF Password Protector offers fast, reliable, and secure PDF encryption online — keeping your data safe at all times.
Fast & Easy PDF Password Protector
Drag and drop your PDF into the toolbox to instantly secure it with a strong password. Protect sensitive documents from unauthorized access while keeping formatting, images, and layouts perfectly intact.
Encrypt Your PDF With Strong Protection
Our PDF Password Protector applies industry-standard encryption to lock your file securely. Add an open password to restrict access or set permissions to prevent copying, editing, or printing. Your PDF remains fully protected while maintaining its original quality.
File Protection Guaranteed
Your privacy is our top priority. Every PDF uploaded for encryption is guarded with TLS security throughout the process. Once your protected file is generated, all documents — both original and encrypted — are automatically deleted from our servers within one hour.
Protect PDFs Online — No Software Needed
Our protection tool works entirely in your browser, making it accessible on Windows, macOS, Linux, and mobile devices. No software downloads, installations, or plugins. Just upload, set a password, and download your secured PDF instantly.
Add Additional Documents
Have more files to protect? Upload additional PDFs and apply unique passwords to each one. Whether you’re securing reports, contracts, IDs, invoices, or personal files, protecting them is simple and fast.
Perfect for All PDF Types
From scanned documents to presentations, forms, eBooks, certificates, or confidential records — every type of PDF can be protected without altering formatting, resolution, or structure.
Secure Your PDFs in the Cloud
All encryption happens safely in the cloud, requiring zero CPU usage on your device. This means fast processing, reliable protection, and a completely free experience without any installations.
How To Password Protect a PDF Online for Free
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- Upload or drag and drop your PDF into the protector.
- Enter your desired password and choose protection settings.
- Click Protect and wait a moment.
- Download your secured PDF — done!
PDF Password Protector FAQs
Yes! Protect as many files as you want with unique passwords for each.
No — your fonts, text, images, and layout stay exactly the same.
Absolutely. You can add permissions to block copying, printing, and modifications.
Yes. TLS encryption secures every file, and all documents are deleted automatically after one hour.
Yes — it works in any browser with no installation required.
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Yes! You can protect unlimited PDFs for free with no hidden charges.