Use PageAreaRedaction

You can use PageAreaRedaction to redact an area of a specific page range from all sensitive data in text, images and annnotations..

The following example demonstrates how to apply PageAreaRedaction to the right half of the last page in a PDF document.


            using (Redactor redactor = new Redactor("Sample.pdf"))
                Regex rx = new Regex("urna");
                ReplacementOptions optionsText = new ReplacementOptions("[redarea]");
                optionsText.Filters = new RedactionFilter[] {
                    new PageRangeFilter(PageSeekOrigin.End, 0, 1), // last page
                    new PageAreaFilter(new System.Drawing.Point(300, 0), new System.Drawing.Size(300, 840)) // right half of the page 300x840
                RegionReplacementOptions optionsImg = new RegionReplacementOptions(System.Drawing.Color.Chocolate, new System.Drawing.Size(100, 100));
                RedactorChangeLog result = redactor.Apply(new PageAreaRedaction(rx, optionsText, optionsImg));
                if (result.Status != RedactionStatus.Failed)

More resources

GitHub examples

You may easily run the code above and see the feature in action in our GitHub examples:

Free online document redaction App

Along with full featured .NET library we provide simple, but powerful free Apps.

You are welcome to perform redactions for various document formats like PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, Emails and more with our free online Free Online Document Redaction App.