How do you programmatically redact PDF FIles?

Question

Adobe Acrobat has the ability to redact PDF files (that is, actually remove the information, rather than simply drawing a black box on top of it). I would like to use this f

Answer 1

You can use GroupDocs.Redaction for .NET to programmatically redact text in the PDF documents. You can perform the exact phrase, case-sensitive and regular expression redaction of the text. This is how you can perform the exact phrase redaction.

using (Document doc = Redactor.Load("D:\\candy.pdf"))
{
     doc.RedactWith(new ExactPhraseRedaction("candy", new ReplacementOptions("[redacted]")));
     // Save the document to "*_Redacted.*" file.
     doc.Save(new SaveOptions() { AddSuffix = true, RasterizeToPDF = false }); 
} 

Disclosure: I work as Developer Evangelist at GroupDocs.