RegexRedaction

RegexRedaction class

Represents a text redaction that searches and replaces text in the document by matching provided regular expression.

public class RegexRedaction : TextRedaction

Constructors

Name	Description
RegexRedaction(Regex, ReplacementOptions)	Initializes a new instance of RegexRedaction class.
RegexRedaction(string, ReplacementOptions)	Initializes a new instance of RegexRedaction class.

Properties

Name	Description
ActionOptions { get; }	Gets the `ReplacementOptions` instance, specifying type of text replacement.
override Description { get; }	Returns a string, describing the redaction and its parameters.
OcrConnector { get; set; }	Gets or sets the `IOcrConnector` implementation, required to extract text from graphic content.
RegularExpression { get; }	Gets the regular expression to match.

Methods

Name	Description
override ApplyTo(DocumentFormatInstance)	Applies the redaction to a given format instance.

Remarks

Learn more

More details about applying redactions: Redaction basics
More details about document text redactions: Text redactions

Examples

The following example demonstrates replacing text using the regular expression.

    using (Redactor redactor = new Redactor(@"C:\sample.pdf"))
    {
      // replace with text
      redactor.Apply(new RegexRedaction("\\d{2}\\s*\\d{2}[^\\d]*\\d{6}", new ReplacementOptions("[removed]")));
      // replace with blue solid rectangle
      redactor.Apply(new RegexRedaction(@"^\d+[,\.]{1}\d+$", new ReplacementOptions(System.Drawing.Color.Blue)));
      redactor.Save();
    }