You can find and remove content either in a single PDF file or in multiple PDF files under a specified folder that contain searchable text with the Search & Redact command.

You need to apply redactions after marking the text, graphics, or pages you want to redact. To apply redactions, do the following: 

You can set redaction properties, such as the appearance and the author, and so forth. Only before you apply the redaction can you set the properties.

Right-click the marked area and choose Properties… and the Redaction Properties dialog box pops up. The redaction properties have Appearance tab, General tab and Review History tab. There are two additional settings on every tab:

To mark text or graphics for redaction, select Protect > Mark for Redaction > Text & Images, and the Hand command changes into a Cross  automatically. Then do any the following to mark the content:

Foxit PDF Editor supports the removal of hidden information that is private or sensitive for users from their PDFs, generally including metadata, embedded content, attached files, and scripts. 

There are two commands you can use to remove hidden information: Sanitize Document and Remove Hidden Information. To remove all hidden information from a PDF file in one go, choose Protect > Hidden Data > Sanitize Document. 

With Foxit PDF Editor, you can classify and protect documents with sensitivity labels configured by the administrator in your organization.

1. Open your PDF with Foxit PDF Editor. 

2. Click Protect > Sensitivity. (Sign in to your AIP account if you haven’t by clicking Connect to Microsoft Azure Information Protection to get the list of configured sensitivity labels.)

You can specify the AIP settings before you encrypt PDFs. To specify AIP settings, please navigate to File > Preferences > AIP Settings. 

If you open a PDF which is encrypted by Foxit with other PDF viewers, a wrapper (which is a PDF page) appears with a prompt that you need to download Foxit PDF Reader/Editor to open the encrypted PDF. With Foxit Configuration Tool, you can customize the wrapper by selecting a desired PDF file. 

You can also set the printing permissions by specifying certain network printers to protect the sensitive information from being printed arbitrarily.

Foxit PDF Editor enables you to track on the usage of AIP protected files to record the actions on the files during workflow, including who accessed the document, what document was accessed, when it was accessed, how it was accessed and the success of that access, and more.