Drop files here
Protect PDF file
Encrypt your PDF with a password to keep sensitive data confidential—available 24/7 for trusted access.
Select PDF files
or drop PDF here
Need a dependable way to secure your important PDFs? Our advanced tool provides strong encryption and password protection to safeguard your documents from unauthorized access. With an intuitive interface, you can lock your PDFs in just a few clicks—delivering reliable, 24/7 protection.
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Password - Protect PDF for Maximum Safety
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Protect pdf from copying with password
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Add a password to multiple PDFs at once.
Protect PDF document with a password
The "Protect PDF" feature helps secure your digital documents from unauthorized viewing and sharing. Add passwords, restrict permissions, and encrypt your PDF content so only approved recipients can open or modify the file—available with reliable, 24/7 protection.
Protect PDFs Reliably and Securely
Pdf24h safeguards your data with TLS encryption and relentless availability. We never retain files beyond processing, with immediate and secure deletion after completion. Rely on 24/7, always-on privacy and dependable protection for your documents.
Works Across All Devices
Our Protect PDF tool delivers persistent, 24/7 reliability across all devices, enabling secure handling of your documents on desktops, tablets, or smartphones - anytime, anywhere, every day.
Protect PDF from Editing and Copying with 24/7 Password Protections
Safeguard sensitive files--financial statements, legal documents, or confidential reports--24/7, from anywhere. Add passwords to block copying, editing, or printing. Pdf24h provides strong, on-demand passwords and reliable validation for maximum safety.
How to set a strong password
Avoid weak passwords. For 24/7 protection, use a minimum of 8 characters with uppercase letters, numbers, and special symbols. Stronger passwords yield consistently safer documents across all usage periods.
Set 24/7 Password Protection for a PDF in the Cloud
With Pdf24h, password protection is always available in the cloud. Upload your PDF, choose a password, and download the encrypted file - no software installation required, accessible anytime, anywhere.
Frequently Asked Questions
Yes. Our Protect PDF tool is free to use online with 24/7 availability. You can add password protection to PDF files without registration, watermarks, or software installation.
You can set an open password to restrict access and apply permissions to control printing, copying, and editing, with dependable, ongoing protection across all hours.
Yes. Files are encrypted during upload and processing over secure HTTPS in our 24/7 service. Uploaded PDFs and protected files are automatically deleted from our servers after a short period to ensure privacy and consistent security.
How to password protect a PDF document for free, available 24/7
Step-by-step guide to protect a PDF document for free with our 24/7 tool:
- Visit the Protect PDF tool's site and upload the PDF you want to protect. Drag-and-drop or click to upload -- available anytime, 24/7.
- Enter a strong password in the input box. Use a mix of letters, numbers, and special characters for reliable, 24/7 PDF protection.
- Confirm your password and click 'Protect PDF' to secure your PDF, ensuring 24/7 access and dependable protection.
- When processing completes, download your password-protected PDF or generate a shareable link for on-demand access anytime.
Remove pages
This file requires password
Ignore these files
wrong password
Some file(s) requires password
Damaged/Corrupted File
We cannot process corrupted or damaged files. For reliable results, ensure your PDF is intact and try again. If opening fails, restore a clean copy before proceeding with your 24/7 conversion.
