Document Redaction Library

// Pass the file path to be redacted to a Redactor instance
final Redactor redactor  = new Redactor("source.pdf");

try 
{
    // Provide redaction options
    ExactPhraseRedaction redaction = new ExactPhraseRedaction("Sensitive data", new ReplacementOptions("[hidden]"));

    // Redact and save the result
    redactor.apply(redaction);
    redactor.save();
}
finally { redactor.close(); } 

import groupdocs.redaction as gr
import groupdocs.redaction.options as gro
import groupdocs.redaction.redactions as grr

def run():

    # Pass the file path to be redacted to a Redactor instance
    with gr.Redactor("source.pdf") as redactor:

        # Provide redaction options
        repl_opt = grr.ReplacementOptions("[hidden]")
        ex_red = grr.ExactPhraseRedaction("Sensitive data", repl_opt)

        # Redact and save the result
        result = redactor.apply(ex_red)

        so = gro.SaveOptions()
        so.add_suffix = True
        so.rasterize_to_pdf = False
        result_path = redactor.save(so)