How to cancel the 'open password' of PDF files?

php editor Baicao teaches you how to cancel the "open password" of PDF files? If you forget the password to open a PDF file, or want to cancel the existing password, you can do so by using some free online tools or professional PDF editing software. This allows you to easily access and edit your PDF files, allowing you to process related content in work and study more efficiently.

Method 1: Use PDF Editor

The PDF editor can not only be used to edit PDF text, but also can set and cancel the "open password".

Download and install a PDF editor, and then open the password-set PDF file through the editor. Because a password has been set, we need to enter the password before opening the PDF. After opening, find the "Password" related options in the menu list, and click [Protect] → [Delete Security Settings];

After the [Security] dialog box pops up, click [OK] to delete the password originally set for the PDF file.

Method 2: PDF Multi-Function Tool

In addition to the PDF editor, we can also use PDF-related tools to remove the "open password".

Take the Pepsi Niu PDF Password Recovery Tool as an example. The [Remove Password] module in the tool is used to cancel the "open password" of PDF files. Click to import the PDF file to start the removal.

After importing the PDF file, the "Password" dialog box will pop up. Enter the originally set password in the blank column. After clicking [Confirm], the "Open Password" of the PDF will be deleted.

It should be noted that the PDF file with the password removed will be saved as a new file. The original PDF still has the password. Click [Open Folder] in the tool to find the new PDF.

Method 3: Use PDF tool to retrieve password

It can be seen from "Method 1" and "Method 2" that both of them need to enter the originally set password in order to cancel the "Open Password" of the PDF file.

So these two methods are suitable for when you remember the password, no longer need to protect the file, and want to remove the "enter password" step; if you forget the password, you cannot use it.

In other words, no matter you use a PDF editor or a PDF tool, you cannot directly remove the "open password" when you forget the secret, but we can find it through the "Method 2" Pepsi Niu PDF Password Recovery Tool. Go back to "Open Password" and then delete the password.

The [Retrieve Password] module in the tool is used to retrieve the PDF "open password".

Tool link: Pepsi Niu PDF Password Recovery Tool

After clicking the [Retrieve Password] module and importing the PDF file, you can see that the tool provides 4 retrieval methods. Select one or more of them and follow the prompts.

Then, wait for the password to be retrieved.

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