How to Corrupt a PDF File So It Won’t Open? [2 Ways]

Why Would You Want to Corrupt a PDF File?

Generally speaking, you certainly don’t want your files to get corrupted. But sometimes, you want to corrupt PDF files. The most common one is that you want to hide its content from everyone. By corrupting a PDF, you ensure that no one can access the information contained within it.

You might think that corrupting a PDF document is complicated, but it’s not. Read on to learn how to corrupt a PDF file so it won’t open.

Create a Backup Before Corrupting a PDF File

It is assumed that the purpose of corrupting a PDF is to hide the content from others. This means you still need to access it. What if the file is corrupted? You can create backups and store them in a secret place.

As an all-in-one PDF manager, MiniTool PDF Editor can help you back up PDF files within a few clicks. Here’s how to do it.

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1. Download and install MiniTool PDF Editor on your PC. Then launch it to enter its main interface.
2. Click Settings in the left panel of the window.
3. In the pop-up window, navigate to the Backup option on the left side and then configure automatic backup settings based on your needs on the right side. After that, click Apply to save the changes you’ve made.
4. Then MiniTool PDF Editor will automatically back up PDFs that you open or edit.

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How to Corrupt a PDF File?

When you want to corrupt a PDF file, there are two tools that can help you. One is Notepad and the other is Corrupt a File.Net.

Method 1. Corrupt a PDF File via Notepad

Windows Notepad is a Windows text editor mainly used for creating and editing plain text documents. You can open a PDF file through Notepad and take some actions to corrupt it. Here’s how to do that.

1. Right-click on the PDF file you want to corrupt and click Open with > Notepad. If you cannot see Notepad from the list, click Choose another app to find it.
2. When Notepad opens the PDF file, you will see a lot of strange commands. Select 10-20 lines of these commands and delete them.
3. Close Notepad and save the changes.

Method 2. Corrupt a PDF file via Corrupt a File.Net

You can easily corrupt a PDF file using the online file corruption tool – Corrupt a file.net. This tool can damage Word, Excel, Archives, MP3, and other common file types. Just submit your PDF files to easily corrupt them.

1. Open a browser and go to https://corrupt-a-file.net/.
2. Choose the file to corrupt.
3. Then click CORRUPT FILE and wait for a while.
4. Finally, click DOWNLOAD YOUR CORRUPTED FILE and save the file to your computer.

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Bottom Line

How to corrupt a PDF file? This post summarizes 2 ways to help you do that. You can open the PDF on Notepad and delete some lines. Alternatively, you can use online tools that may corrupt your files.