PDF24Tools
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PDF24 Creator
Lock PDF files with a password and set permissions
Free Online No limits
Drop here
... or drop files here
By using this function, you accept our terms of service
File protection is active
Download Desktop App
4.9(441 votes)
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Information
256 bits AES
How to protect PDF files
Select your files which you want to secure or drop them into the file box and start the protection. A few seconds later you can download your secured PDF files.
Permissions adjustable
You can adjust the permissions of your protected PDF files. You could, for example, disallow printing, copying of contents or modifications of the protected PDF.
Easy to use
PDF24 makes it as easy as possible for you to protect your PDF files. No installation is required. Simply select your files, change the settings and start the protection.
Supports your system
There are no special system requirements to protect your PDF files. This PDF protection tool functions under all common operating systems and browsers.
No installation required
You do not need to download and install any software. The protection app runs in the cloud on our servers. The app does not consume resources from your computer.
Security is important to us
Your files are no longer than necessary on our server. Your files and results will be deleted from our server after a short period of time.
Windows Linux MAC iPhone Android
Developed by Stefan ZieglerWhat others are saying
A quick and easy way to set a password in a PDF. I don't need an extra program anymore.
Besides the password, I can also set the permissions in a PDF and forbid printing the PDF in this way.
Questions and Answers
How can I protect PDF files with a password?
- Use the file selection box at the top of the page to select the PDF files you want to protect.
- Adjust the security settings and enter your password.
- Create the protected PDFs by pressing the corresponding button.
- Click on the download button to save the encrypted PDFs on your computer after the protected PDFs have been created.
Is it secure to use PDF24 Tools?
PDF24 takes the protection of files and data very seriously. We want our users to be able to trust us. Security aspects are therefore a permanent part of our work.
- All file transfers are encrypted.
- All files are automatically deleted from the processing server within one hour after processing.
- We do not store files and do not evaluate them. Files will only be used for the intended purpose.
- PDF24 is operated by a German company, Geek Software GmbH. All processing servers are located in data centres within the EU.
- Alternatively, you can get a desktop version of the PDF24 tools with the PDF24 Creator. All files remain on your computer here, as this software works offline.
Can I use PDF24 on a Mac, Linux or Smartphone?
Yes, you can use PDF24 Tools on any system with which you have access to the Internet. Open PDF24 Tools in a web browser such as Chrome and use the tools directly in the web browser. You do not need to install any other software.
You can also install PDF24 as an app on your smartphone. To do so, open the PDF24 Tools in Chrome on your smartphone. Then click on the "Install" icon in the upper right corner of the address bar or add PDF24 to your start screen via the Chrome menu.
Can I use PDF24 offline without an Internet connection?
Yes, Windows users can also use PDF24 offline, i.e. without an Internet connection. Simply download the free PDF24 Creator and install the software. The PDF24 Creator brings all PDF24 tools to your PC as a desktop application. Users of other operating systems should continue to use PDF24 Tools.
How can I install PDF24 on my Android or iPhone?
Simply open the website https://tools.pdf24.org in a web browser on your smartphone and click on “Install” in the browser menu. This will install all PDF24 tools as an app on your Android or iPhone.
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