Guides

Convert PDF to searchable PDF

Overview

To make a searchable PDF by adding invisible text to an image based PDF such as a scanned document using OCR.

Sample

Full code sample which shows how to use the ComPDFKit OCR module on scanned documents in multiple languages.

string inputFilePath = "***";
string password = "***";
string outputFileName = "***";

PdfOptions pdfOptions = new PdfOptions();
pdfOptions.EnableOCR = true;
ErrorCode error = CPDFConversion.StartPDFToSearchablePDF(inputFilePath, password, outputFileName, pdfOptions);