public static void Run() { // ExStart:DecryptFile // The path to the documents directory. string dataDir = RunExamples.GetDataDir_AsposePdfFacades_SecuritySignatures(); // Create PdfFileSecurity object PdfFileSecurity fileSecurity = new PdfFileSecurity(); fileSecurity.BindPdf(dataDir + "Decrypt.pdf"); // Decrypt PDF document fileSecurity.DecryptFile("owner"); fileSecurity.Save(dataDir + "DecryptFile_out.pdf"); // ExEnd:DecryptFile }