How to use a PDF redactor to black out content Online tools make it easy to hide sensitive information in PDF files in just a few clicks.

Removing text from a PDF isn't as easy as drawing a black bar across it. Fortunately, redaction tools let you truly erase sensitive text in Preview, Adobe Acrobat DC Pro, and PDFPen.

Use hidden text to hide content you’d otherwise have to put in another Microsoft Word document.

Since Word normally defaults to show hidden text (that’s why the potentially hidden sentence contains those dots), I now will change the default by going to Word’s default screen: On the toolbar click ...