1043933-1: Resolved the playground issue.

Digital Signature/Multiple-digital-signature/.NET/Multiple-digital-signature/Program.cs

@@ -3,48 +3,59 @@
 using Syncfusion.Pdf.Security;
 using Syncfusion.Pdf;
 
-//Load an existing PDF document. 
-using (PdfLoadedDocument loadedDocument = new PdfLoadedDocument(Path.GetFullPath(@"Data/SignatureFields.pdf")))
-{
-
-    //Get the first page of the document.
-    PdfLoadedPage page = loadedDocument.Pages[0] as PdfLoadedPage;
-    //Get the first signature field of the PDF document.
-    PdfLoadedSignatureField signatureField1 = loadedDocument.Form.Fields[0] as PdfLoadedSignatureField;
-    //Create a certificate instance from a PFX file with a private key.
-    FileStream certificateStream = new FileStream(Path.GetFullPath(@"Data/PDF.pfx"), FileMode.Open, FileAccess.Read);
-    PdfCertificate certificate1 = new PdfCertificate(certificateStream, "syncfusion");
-    //Add a signature to the signature field.
-    signatureField1.Signature = new PdfSignature(loadedDocument, page, certificate1, "Signature", signatureField1);
-    //Set an image for the signature field.
-    FileStream imageStream1 = new FileStream(Path.GetFullPath(@"Data/Student Signature.jpg"), FileMode.Open, FileAccess.Read);
-    PdfBitmap signatureImage = new PdfBitmap(imageStream1);
-    //Insert an image in the signature appearance. 
-    signatureField1.Signature.Appearance.Normal.Graphics.DrawImage(signatureImage, 0, 0, 90, 20);
-    //Save the document into the stream.
-    MemoryStream stream = new MemoryStream();
-    loadedDocument.Save(stream);
-
-    //Load the signed PDF document.
-    using (PdfLoadedDocument signedDocument = new PdfLoadedDocument(stream))
-    {
-        //Load the PDF page.
-        PdfLoadedPage loadedPage = signedDocument.Pages[0] as PdfLoadedPage;
-
-        //Get the first signature field of the PDF document.
-        PdfLoadedSignatureField signatureField2 = signedDocument.Form.Fields[1] as PdfLoadedSignatureField;
-
-        //Add a signature to the signature field. 
-        signatureField2.Signature = new PdfSignature(signedDocument, loadedPage, certificate1, "Signature", signatureField2);
-
-        //Set an image for the signature field.
-        FileStream imageStream2 = new FileStream(Path.GetFullPath(@"Data/Teacher Signature.png"), FileMode.Open, FileAccess.Read);
-        PdfBitmap signatureImage1 = new PdfBitmap(imageStream2);
-
-        //Draw an image in the signature appearance. 
-        signatureField2.Signature.Appearance.Normal.Graphics.DrawImage(signatureImage1, 0, 0, 90, 20);
-
-        //Save the PDF document
-        signedDocument.Save(Path.GetFullPath(@"Output/Output.pdf"));
-    }
-}
+// Open the existing PDF document.
+PdfLoadedDocument loadedDocument = new PdfLoadedDocument(Path.GetFullPath(@"Data/SignatureFields.pdf"));
+
+// Retrieve the first page from the PDF document.
+PdfLoadedPage page = loadedDocument.Pages[0] as PdfLoadedPage;
+
+// Access the first signature field available in the PDF form.
+PdfLoadedSignatureField signatureField1 = loadedDocument.Form.Fields[0] as PdfLoadedSignatureField;
+
+// Create a certificate object using the PFX file and its password.
+PdfCertificate certificate1 = new PdfCertificate(Path.GetFullPath(@"Data/PDF.pfx"), "syncfusion");
+
+// Digitally sign the first signature field.
+signatureField1.Signature = new PdfSignature(loadedDocument, page, certificate1, "Signature1", signatureField1);
+
+// Load the signature image for the first signer.
+FileStream imageStream1 = new FileStream(Path.GetFullPath(@"Data/Student Signature.jpg"), FileMode.Open, FileAccess.Read);
+
+PdfBitmap signatureImage = new PdfBitmap(imageStream1);
+
+
+// Render the signature image within the signature field appearance.
+signatureField1.Signature.Appearance.Normal.Graphics.DrawImage(signatureImage, 0, 0, signatureField1.Bounds.Width, signatureField1.Bounds.Height);
+
+// Save the signed PDF into a memory stream.
+MemoryStream stream = new MemoryStream();
+loadedDocument.Save(stream);
+
+// Close the original PDF document instance.
+loadedDocument.Close(true);
+
+// Reopen the partially signed PDF from the memory stream.
+PdfLoadedDocument signedDocument = new PdfLoadedDocument(stream);
+
+// Retrieve the first page of the signed document.
+PdfLoadedPage loadedPage = signedDocument.Pages[0] as PdfLoadedPage;
+
+// Access the second signature field in the PDF form.
+PdfLoadedSignatureField signatureField2 = signedDocument.Form.Fields[1] as PdfLoadedSignatureField;
+
+// Apply a digital signature to the second signature field.
+signatureField2.Signature = new PdfSignature(signedDocument, loadedPage, certificate1, "Signature2", signatureField2);
+
+// Load the signature image for the second signer.
+FileStream imageStream2 = new FileStream(Path.GetFullPath(@"Data/Teacher Signature.png"), FileMode.Open, FileAccess.Read);
+
+PdfBitmap signatureImage1 = new PdfBitmap(imageStream2);
+
+// Display the signature image in the second signature field appearance.
+signatureField2.Signature.Appearance.Normal.Graphics.DrawImage(signatureImage1, 0, 0, signatureField2.Bounds.Width, signatureField2.Bounds.Height);
+
+// Save the fully signed PDF document.
+signedDocument.Save(Path.GetFullPath(@"Output/Output.pdf"));
+
+// Close the signed PDF document.
+signedDocument.Close(true);

OCR/.NET/Perform-OCR-on-PDF-with-multiple-languages/Perform-OCR-on-PDF-with-multiple-languages/Program.cs

@@ -12,9 +12,9 @@
     // Set OCR language
     processor.Settings.Language = "eng+deu+ara+ell+fra"; // English, German, Arabic, Greek, French
     // Set the path to the Tesseract language data folder
-    processor.TessDataPath = Path.GetFullPath(@"../../Tessdata");
+    processor.TessDataPath = Path.GetFullPath(@"Tessdata");
     // Perform OCR
     processor.PerformOCR(loadedDocument);
     // Save the PDF document
     loadedDocument.Save(Path.GetFullPath(@"Output/Output.pdf"));
-}
+}

OCR/.NET/Perform-OCR-on-image-file/Perform-OCR-on-image-file/Program.cs

@@ -1,29 +1,22 @@
 using Syncfusion.OCRProcessor;
 using Syncfusion.Pdf.Graphics;
-using System.Drawing;
-
-string tessdataPath = Path.GetFullPath(@"Tessdata");
 
 //Initialize the OCR processor by providing the path of the tesseract binaries.
 using (OCRProcessor processor = new OCRProcessor())
 {
-    //Get stream from the image file. 
+    //Get stream from the image file.
     FileStream stream = new FileStream(Path.GetFullPath(@"Data/Input.jpg"), FileMode.Open);
-
+ 
     //Set OCR language to process.
     processor.Settings.Language = Languages.English;
-
+ 
     //Sets Unicode font to preserve the Unicode characters in a PDF document.
     FileStream fontStream = new FileStream(Path.GetFullPath(@"Data/ARIALUNI.ttf"), FileMode.Open);
-
+ 
     processor.UnicodeFont = new PdfTrueTypeFont(fontStream, 8);
-
+ 
     //Perform the OCR process for an image steam.
-    string ocrText = processor.PerformOCR(stream, tessdataPath);
-
-    //Write the OCR'ed text in text file. 
-    using (StreamWriter writer = new StreamWriter(Path.GetFullPath(@"Output/Output.txt"), true))
-    {
-        writer.WriteLine(ocrText);
-    }
+    string ocrText = processor.PerformOCR(stream, processor.TessDataPath);
+
+    System.IO.File.WriteAllText(Path.GetFullPath(@"Output/Output.txt"), ocrText);  
 }