php editor Xinyi will share with you how to remove the password of PDF files today. Sometimes we may forget the password of a PDF file, or we need to share the file but don't want to reveal the password. In this case, we can remove the password protection of the PDF file through some simple operations, making the file more convenient. Next, let’s take a look at how to operate it!
As long as you know the password, you can perform operations in the PDF editor, whether it is an opening password or a restricted password. Just find [Remove Security Settings] under the [Protection] option of the PDF editor.
If the editor you are using does not have this function, we will talk about other methods later in the article.
If the opening password is removed, a dialog box will pop up prompting "Are you sure you want to delete the security settings?" After clicking [OK], the opening password will be removed.
If the restricted password is removed, a prompt will pop up that requires you to enter the originally set password. Click [OK] after entering the password. Save the settings and then open the PDF file. The restricted password will be removed.
Let’s talk about another situation here. Sometimes we want to remove the password. It’s not that we no longer need to use it, but that we have forgotten the originally set password. Can this be removed?
As can be seen from the above operation, the prerequisite for removal is to know the original password. Even if you open the password, you need to open the file with the password before you can remove it, so you cannot remove it directly if you don't know the password. But we can use other tools, such as Pepsi Niu PDF Password Recovery Tool, to solve these two problems at the same time.
There are multiple function modules in the tool. If you forget the opening password, you can use the [Retrieve Password] module to retrieve the password and then remove it according to the above method; if you forget the restriction password, you can use [Retrieve Password] module. Remove Restrictions] module, remove restrictions directly without entering a password.
Tool link: Pepsi Niu PDF Password Recovery Tool
In addition, as mentioned at the beginning, if there is no password removal function in the editor, you can also find [Remove Password] in this tool to achieve it.
The above is the detailed content of I know the PDF password, how do I want to remove it?. For more information, please follow other related articles on the PHP Chinese website!

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