Redact PDF Documents using C#

RedactPDF_CSharp

Redact PDF Documents using C#
1. C# API for PDF Redaction
2. Redact Text in PDF Documents using C#
3. Apply Metadata Redaction in PDF Documents using C#
4. Redact Annotation in PDF Documents using C#

RedactPDF_CSharp_MultipleRedaction.cs

// create redactor
Redactor redactor = new Redactor("C:\\Files\\sample.pdf");

// define multiple redactions
var redactionList = new Redaction[]
{
    new ExactPhraseRedaction("John Doe", new ReplacementOptions("[Client]")),
    new RegexRedaction("Redaction", new ReplacementOptions("[Product]")),
    new RegexRedaction("\\d{2}\\s*\\d{2}[^\\d]*\\d{6}", new ReplacementOptions(System.Drawing.Color.Blue)),
    new EraseMetadataRedaction(MetadataFilters.All)
};

// apply redactions
RedactorChangeLog result = redactor.Apply(redactionList);

// save if applied else show errors
if (result.Status == RedactionStatus.Applied)
{
    redactor.Save();
}
else if (result.Status == RedactionStatus.Failed)
{
    for (int i = 0; i < result.RedactionLog.Count; i++)
    {
        RedactorLogEntry logEntry = result.RedactionLog[i];
        if (logEntry.Result.Status != RedactionStatus.Applied)
        {
            Console.WriteLine("{0} status is {1}, details: {2}",
                logEntry.Redaction.GetType().Name,
                logEntry.Result.Status,
                logEntry.Result.ErrorMessage);
        }
    }
};

RedactPDF_CSharp_RedactAnnotation.cs

// create redactor
Redactor redactor = new Redactor("C:\\Files\\Redaction\\sample.pdf");

// create annotation redaction
AnnotationRedaction redaction = new AnnotationRedaction("(?im:john)", "[redacted]");

// apply redaction
redactor.Apply(redaction);
redactor.Save();

RedactPDF_CSharp_RedactImages.cs

// create redactor
Redactor redactor = new Redactor("C:\\Files\\sample_with_images.pdf");

// define size and points
System.Drawing.Point samplePoint = new System.Drawing.Point(0, 0);
System.Drawing.Size sampleSize = new System.Drawing.Size(300, 240);

// define image area redaction
ImageAreaRedaction redaction = new ImageAreaRedaction(samplePoint,
             new RegionReplacementOptions(System.Drawing.Color.Blue, sampleSize));

// apply redaction
RedactorChangeLog result = redactor.Apply(redaction);

if (result.Status != RedactionStatus.Failed)
{
    redactor.Save();
};

RedactPDF_CSharp_RedactMetadata.cs

// create redactor
Redactor redactor = new Redactor("C:\\Files\\sample.pdf");

// erase author, manager and company
EraseMetadataRedaction redaction = new EraseMetadataRedaction(MetadataFilters.Author | MetadataFilters.Manager | MetadataFilters.Company);

// apply redaction
redactor.Apply(redaction);
redactor.Save();

RedactPDF_CSharp_RedactText.cs

// create redactor
Redactor redactor = new Redactor("C:\\Files\\sample.pdf");

// create exact phrase redaction
ExactPhraseRedaction redaction = new ExactPhraseRedaction("John Doe", true, new ReplacementOptions("[personal]"));

// apply redaction
RedactorChangeLog result = redactor.Apply(redaction);
if (result.Status != RedactionStatus.Failed)
{
    redactor.Save();
};