Annotate PDF

1. Select the PDF file you want to annotate using the file selection box on this page. Your PDF will then be opened in the PDF24 Editor.
2. Use the tools of the PDF24 Editor to add new elements like text or images or to highlight text.
3. After editing, click on the save icon in the toolbar and then use the download button to save your annotated PDF on your computer.

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.

1. All file transfers are encrypted.
2. All files are automatically deleted from the processing server within one hour after processing.
3. We do not store files and do not evaluate them. Files will only be used for the intended purpose.
4. PDF24 is operated by a German company, Geek Software GmbH. All processing servers are located in data centres within the EU.
5. 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.

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.

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.