ComPDFKit
Get TrialContact Sales
DemoFAQTechnical Support
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.

c#
string inputFilePath = "***";
string outputFolderPath = "***";
string outputFileName = "***";

CPDFConverterSearchablePDF converter = CPDFConvertFactroy.CreateConverter(CPDFConvertType.CPDFConvertTypePDFSearchable, inputFilePath) as CPDFConverterSearchablePDF;

CPDFConvertPDFSearchableOptions searchableOptions = new CPDFConvertPDFSearchableOptions();
searchableOptions.OCRLanguage = ComDocumentAIOCR.Language.ENGLISH;


int pageCount = converter.GetPagesCount();
int[] pageArray = new int[pageCount];
for (int i = 0; i < pageArray.Length; i++)
{
    pageArray[i] = i + 1;
}

ConvertError error = ConvertError.ERR_UNKNOWN;
converter.Convert(outputFolderPath, ref outputFileName, searchableOptions, pageArray, ref error, getPorgress);