Is it safe to protect my PDF online?
Yes, both Smallpdf and PDF24 use secure encryption and delete files after processing.
Whether you're safeguarding confidential contracts, financial reports, or personal files, adding a password to your PDF is a simple and effective way to ensure only authorized people can view or modify your documents.
Simple steps to enhance your PDF documents
Follow these 3 simple steps:
Upload your PDF file to the secure tool.
Set a strong password and customize permissions if desired.
Download your password-protected PDF. You can also generate a shareable link - make it publicly accessible, add another layer of protection with a link password, or set an expiration date and time for secure sharing. No installation, no sign-up, and no watermarks—just fast, free protection.
We are here to answer your questions!
Got questions about our tool features? We've gathered answers to the most common inquiries. Need more help? Reach out to our team.
Yes, both Smallpdf and PDF24 use secure encryption and delete files after processing.
Yes, PDF24 allows you to restrict printing, copying, or editing.
No. These tools work entirely in your browser on any device.
No. Both tools offer watermark-free protection.
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