Flatten PDF

Quickly and easily protect completed forms from changes

Free Online No limits
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... or drop files here
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4.9 (60 votes)
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How to flatten PDF

Select the PDF files you want to flatten or drop them into the file box and start the process. A few seconds later you can download your new flattened PDFs.

Protect forms from changes

PDF flattening protects forms from changes by combining the changeable elements with the actual page content. Completed PDFs should always be sent only flattened.

Easy to use

PDF24 makes it as easy and fast as possible to flatten PDFs. You don't need to install or set anything, just select your files and start the flattening process.

Supports your system

There are no special requirements for your system to flatten PDFs. This PDF24 app works on all major operating systems and browsers.

No installation necessary

You do not need to install any software. The PDFs are processed on special PDF24 servers. Your system will not be burdened and does not need any special requirements.

Safety is important to us

This tool does not store your files longer than necessary on the PDF24 servers. Your files and results will be completely removed from our servers after a short period time.

Developed by Stefan Ziegler

Questions and Answers

How can I flatten a PDF?

  1. Use the file selection box at the top of the page to select the PDFs you want to flatten.
  2. Start the flattening process by clicking on the corresponding button.
  3. Use the download button to save the new PDFs to your computer.

Why should I flatten a PDF?

Imagine you fill out a PDF and then send this PDF file to another person who processes the data. But if this PDF, which can still be filled out, now falls into the wrong hands, then you make it very easy for this person to change the data afterwards. For example, someone could change your bank details. To prevent this from happening, you should always send filled-out PDFs only flattened, because in such PDFs there are no longer any editable form elements. These have been merged with the actual content of the page.

An even more secure way to protect page contents from changes is to convert PDF pages to images. These images can then be embedded again as pages in a PDF. With this you really get a very secure PDF file. PDF24 has its own tool for exactly this purpose, with which you can convert a PDF into a more secure PDF.

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.

  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.

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.

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