Questions on Telerik Document Processing Forum

1 answer

57 views

How to add png image next to the text in the bound of signature filed both should be in the signature field in the exsting pdf

Hi,

1) i want to add and image and text in the signature field with specified size and i want to do that in the existing pdf with signature field ?
2) how to add any type of image [jpg, jpeg , png, etc.] in extsting pdf
static byte[] GenerateSignedPdf(Cert objCert)
{
// Dimensions and positions for the signature field
int signatureFieldWidth = 200;
int signatureFieldHeight = 50;
int signaturePositionLeft = 10;
int signaturePositionTop = 10;

// Load the certificate
X509Certificate2 certificate = new X509Certificate2(objCert.CertArray, objCert.Password);

// Create a SignatureField and assign the digital signature to it
SignatureField pdfSignature = new SignatureField("SignatureField");
pdfSignature.Signature = new Telerik.Windows.Documents.Fixed.Model.DigitalSignatures.Signature(certificate);

// Create a new form to place the signature field
Form pdfForm = new Form();
pdfForm.FormSource = new FormSource();
pdfForm.FormSource.Size = new Telerik.Documents.Primitives.Size(signatureFieldWidth, signatureFieldHeight);
FixedContentEditor editor = new FixedContentEditor(pdfForm.FormSource);

// Draw the text with certificate holder's name and current date
string textToDraw = $"{certificate.GetNameInfo(X509NameType.SimpleName, false)} {DateTime.Now:yyyy.MM.dd HH:mm}";
editor.DrawText(textToDraw, new Telerik.Documents.Primitives.Size(5, 5)); // Adjust position as needed

// Path to the image (ensure this is correct)
string imagePath = "C:/Vaibhav/ProjectVaibhav/PdfProcessing_InsertImageInExistingPdf/image.png"; // Change path as needed

// Ensure the image exists and can be accessed
if (File.Exists(imagePath))
{
using (var imageStream = new FileStream(imagePath, FileMode.Open, FileAccess.Read))
{
var imageSource = new ImageSource(imageStream);
editor.DrawImage(imageSource, new Telerik.Documents.Primitives.Size(100, 50)); // Adjust image size and position as needed
}
}
else
{
throw new FileNotFoundException("Image file not found at: " + imagePath);
}

// Create the SignatureWidget and position it on the PDF page
SignatureWidget signatureWidget = pdfSignature.Widgets.AddWidget();
signatureWidget.Content.NormalContentSource = pdfForm.FormSource;
signatureWidget.Rect = new Rect(signaturePositionLeft, signaturePositionTop, signatureFieldWidth, signatureFieldHeight);
signatureWidget.RecalculateContent();

// Create a RadFixedDocument and add a page
RadFixedDocument document = new RadFixedDocument();
RadFixedPage pdfPage = document.Pages.AddPage();
pdfPage.Annotations.Add(signatureWidget);

// Add content from the form to the page at the specified position
FixedContentEditor pageEditor = new FixedContentEditor(pdfPage);
pageEditor.Position.Translate(signaturePositionLeft, signaturePositionTop);
pageEditor.DrawForm(pdfForm.FormSource);

// Add the signature field to the document's AcroForm
document.AcroForm.FormFields.Add(pdfSignature);

// Use MemoryStream to capture the PDF output and return as a byte array
using (MemoryStream memoryStream = new MemoryStream())
{
var pdfFormatProvider = new PdfFormatProvider();
pdfFormatProvider.Export(document, memoryStream);
return memoryStream.ToArray(); // Return the byte array of the PDF
}
}

General Discussions

PdfProcessing

SpreadProcessing

SpreadStreamProcessing

WordsProcessing

ZipLibrary

answered on 02 Dec 2024

1 answer

192 views

time of adding image in the existing pdf some exception is throwing can you give solution on that with smple code

System.InvalidOperationException: 'FixedExtensibilityManager.ImagePropertiesResolver and FixedExtensibilityManager.JpegImageConverter cannot be both null. The .NET Standard does not define APIs for decoding images. That`s why in order to export images different than Jpeg and Jpeg2000 and ImageQuality different than High you will need to reference the Telerik.Documents.ImageUtils assembly/NuGet in your project and to set its basic implementation to the ImagePropertiesResolver/JpegImageConverter property or to create a custom one inheriting the ImagePropertiesResolverBase/JpegImageConverterBase class. For more information go to: https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/cross-platform/images'

General Discussions

PdfProcessing

ZipLibrary

answered on 28 Nov 2024

1 answer

200 views

Add Margin Borders to page or section

How can i add borders to the first page or section?

I find the property borders in Paragraph, but i cant find it in Section, how can i add the border to the full page or section?

Example attached.

Regard

WordsProcessing

updated answer on 28 Oct 2024

0 answers

108 views

Background Color or Shading in Header?

I am trying to programmatically reproduce a header, and nothing I've tried will add a background color or shading. How do you format a table in a header?

HtmlFormatProvider provider = new HtmlFormatProvider();
RadFlowDocument html = provider.Import(sb.ToString());
Section section = html.Sections[0];
section.PageMargins = new Telerik.Windows.Documents.Primitives.Padding(24);
ThemableColor gray = new ThemableColor(new System.Windows.Media.Color {R = 220, G = 220, B = 220});

Header header = section.Headers.Add();
Table table = header.Blocks.AddTable();
TableRow row1 = table.Rows.AddTableRow();
TableCell Title = row1.Cells.AddTableCell();
TableCell Version = row1.Cells.AddTableCell();

Title.PreferredWidth = new TableWidthUnit(384);
Title.Shading.BackgroundColor = gray;
Title.Blocks.AddParagraph().Inlines.AddRun("Executive Summary");

Version.PreferredWidth = new TableWidthUnit(384);
Version.Shading.BackgroundColor = gray;
Version.Blocks.AddParagraph().Inlines.AddRun("Version Name:");

TableRow row2 = table.Rows.AddTableRow();
TableCell Incident = row2.Cells.AddTableCell();
TableCell Period = row2.Cells.AddTableCell();
                    
Incident.Blocks.AddParagraph().Inlines.AddRun("Incident:");
Period.Blocks.AddParagraph().Inlines.AddRun("Period:");

PdfFormatProvider pdf = new PdfFormatProvider();

return pdf.Export(html);

The attached Header.png is an example of what I'm trying to reproduce.

PdfProcessing

asked on 22 Oct 2024

2 answers

86 views

PDF SplitDocumentPages

Hi,

I have: Telerik UI for ASP.NET AJAX

I test SplitDocumentPages from PDF example. from https://github.com/telerik/document-processing-sdk/blob/master/PdfProcessing/ManipulatePages/Program.cs

net.framework: 4.8

test pdf is: https://github.com/telerik/document-processing-sdk/blob/master/PdfProcessing/ManipulatePages/InputFiles/MultipageDocument.pdf

Not working well. see picture split1.pdf, only large rectangle without any data.

Please help.

Thx

PdfProcessing

answered on 16 Oct 2024

1 answer

69 views

Bug with drawing with release 2024.3.806 (not with release 2024.2.426)

Hi,

I have an existing xlsx file that contains graphics (drawing)

I simply open the workbook,

var workbook = CreateWorkbook();

byte[] bytes;

using (var output = new MemoryStream())
{
    new XlsxFormatProvider().Export(workbook, output);
    bytes = output.ToArray();
}

File.WriteAllBytes("c:\\Logs\\test.xlsx", bytes);


private Workbook CreateWorkbook()
{
    Workbook workbook;
    IWorkbookFormatProvider formatProvider = new XlsxFormatProvider();
    FileStream? stream = null;
    try
    {
        stream = File.Open("AnalyseImpayeTemplate.xlsx", FileMode.Open);
        workbook = formatProvider.Import(stream);
    }
    catch (IOException ex)
    {
        throw new IOException("The file cannot be opened. It might be locked by another application.", ex);
    }
    finally
    {
        stream?.Dispose();
    }

    return workbook;
}

When I open the result file, with release 2024.3.806, I got an error. It delete drawing parts :

Partie supprimée: /xl/drawings/drawing1.xml partie. (Forme de dessin)

With release 2024.2.426, it works fine.

Any ideas why?

SpreadProcessing

SpreadStreamProcessing

answered on 08 Oct 2024

1 answer

65 views

WordsProcessing: Row height when exporting to PDF

Hi

I have a problem with row height when processing docx files and exporting to pdf.
Export does not respect the height of a table row if the height of a given row is lower than the content of cells in that row. However, if the height of the row is greater than the content, then it is ok.
During processing, a given row has its height set as Exact and a specific value in pixels, but after export, the height of a given row in the table adjusts to the content.

Maybe there is a workaround for this problem?

WordsProcessing

answered on 09 Sep 2024

2 answers

112 views

Html to PDF Bold appears inconsistent (Telerik 2024.3.802)

I have the following code that shows the bold formatting from HTML to PDF appears inconsistent.

The last table has all the cells wrapped in <b> tags, but they are not rendered bold in the PDF. There seems to be some correlation to the length of the text (short text sometimes will be bold). I have also tried <strong> tags and CSS that applies bold. It does not matter which font is chosen.

Inconclusive observation: It appears that if the bold text line wraps inside a cell, it doesn’t apply bold. Text that does not wrap in the cell appears to apply bold.

Any help appreciated.

using RegServices.Portal.Web.Services.Pdf;
using Telerik.Documents.ImageUtils;
using Telerik.Windows.Documents.Flow.FormatProviders.Html;
using Telerik.Windows.Documents.Flow.Model;
using Xunit.Abstractions;

namespace Portal.Web.Tests.Pdf;

public class PdfBoldRenderTests : OutputTestBase
{
    private readonly IHtmlToWordConverter _htmlToWordConverter = new HtmlToWordConverter();
    string path = "c:\\\\temp\\\\pdf\\\\";
    public PdfBoldRenderTests(ITestOutputHelper output) : base(output)
    {
    }

    [Fact]
    public void CanRenderBold()
    {
        var html = $$"""
                   <!DOCTYPE html>
                   <html lang="en">
                      <head>
                         <title>Test</title>
                         <style>
                            body { 
                            font-family: Arial;
                            }
                            .bold {
                            font-weight: bold;
                            }
                            .font-bold {
                            font-weight: 800;
                            }
                            .font-black {
                            font-weight: 800;
                            }
                         </style>
                      </head>
                      <body>
                         <table>
                            <tr>
                               <td>
                                  The quick brow fox. Regular text <br>
                                  <b>The quick brow fox.  Bold text</b><br>
                                  <span class="bold">The quick brow fox.  Bold text via css</span><br>
                               </td>
                               <td>
                                  <table>
                                     <tr>
                                        <td>
                                           The quick brow fox. Regular text <br>
                                           <b>The quick brow fox.  Bold text</b><br>
                                           <span class="bold">The quick brow fox.  Bold text via css</span><br>
                                        </td>
                                     </tr>
                                  </table>
                               </td>
                            </tr>
                            <tr>
                               <td colspan="2">
                                  <table>
                                     <tbody>
                                        <tr>
                                           <td class="w-2-24">
                                              <b>Financial year</b>
                                           </td>
                                           <td>
                                              <b>General Services Charge (range)</b><em>(weekly)</em>
                                              <span class="font-black">General Services Charge (range)</span>
                                           </td>
                                           <td class="w-2-24">
                                              <b>Overall % change from previous year </b>
                                           </td>
                                           <td>
                                              <b>
                                              Maintenance Reserve Fund contribution (range)
                                              </b>
                                              <em>(weekly)</em>
                                           </td>
                                           <td class="w-2-24">
                                              <b>Overall % change from previous year</b>
                                              <em>(+ or -)</em>
                                           </td>
                                        </tr>
                                  </table>
                               </td>
                            </tr>
                         </table>
                         <b>The quick brow fox.  Bold text</b><br>
                         <table>
                            <tbody>
                               <tr>
                                  <td class="w-2-24">
                                     <b>Financial year</b>
                                  </td>
                                  <td>
                                     <b>Bold Text</b><em>(weekly)</em>
                                     <span class="font-black">General Services Charge (range)</span>
                                  </td>
                                  <td class="w-2-24">
                                     <b>Bold Text</b>
                                  </td>
                                  <td>
                                     <b>
                                     Bold Text
                                     </b>
                                     <em>(weekly)</em>
                                  </td>
                                  <td class="w-2-24">
                                     <b>Bold Text</b>
                                     <em>(+ or -)</em>
                                  </td>
                               </tr>
                            </tbody>
                         </table>
                         
                         <b>The quick brow fox.  Bold text</b><br>
                         <table>
                            <tr>
                               <td>
                                  <b>I am a bold text</b>
                               </td>
                               <td>
                                  <b>I am a bold text
                                  </b><em>(weekly)</em>
                               </td>
                               <td>
                                  <b>I am a bold text</b>
                               </td>
                               <td>
                                  <b>
                                  I am a bold text test test
                                  </b>
                                  <em>(weekly)</em>
                               </td>
                               <td>
                                  <b>I am a bold text test</b>
                               </td>
                            </tr>
                         </table>
                      </body>
                   </html>
                   """;

        var htmlDocument = _htmlToWordConverter.ConvertHtmlToWord(html);
        var docxProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider();

        Telerik.Windows.Documents.Extensibility.FixedExtensibilityManager.FontsProvider =
            new FontsProvider();

        using var memoryStream = new MemoryStream();
        docxProvider.Export(htmlDocument, memoryStream);
        var documentBytes = memoryStream.ToArray();

        File.WriteAllBytes($"{path}Test.docx", documentBytes);

        var (pdfBytes, pdfDoc) = PdfConverter.ConvertDocxToPdf(documentBytes);
        File.WriteAllBytes($"{path}Test.pdf", pdfBytes);

        var provider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider();
        using Stream pdfStream = File.OpenWrite($"{path}Test2.pdf");
        provider.Export(pdfDoc, pdfStream);
    }
    
    public interface IHtmlToWordConverter
    {
        RadFlowDocument ConvertHtmlToWord(string html);
    }

    public class HtmlToWordConverter : IHtmlToWordConverter
    {
        public RadFlowDocument ConvertHtmlToWord(string html)
        {
            var htmlFormatProvider = new HtmlFormatProvider();
            return htmlFormatProvider.Import(html);
        }
    }

    public static class PdfConverter
    {
        static PdfConverter()
        {
            var defaultImagePropertiesResolver = new ImagePropertiesResolver();
            Telerik.Windows.Documents.Extensibility.FixedExtensibilityManager.ImagePropertiesResolver =
                defaultImagePropertiesResolver;
        }

        public static (byte[] bytes, RadFlowDocument doc) ConvertDocxToPdf(byte[] docxBytes)
        {
            var docxProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider();
            var pdfProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider();

            var document = docxProvider.Import(docxBytes);

            using var memoryStream = new MemoryStream();
            pdfProvider.Export(document, memoryStream);
            pdfProvider.ExportToFixedDocument(document);
            return (memoryStream.ToArray(), document);
        }
    }
}

PdfProcessing

answered on 31 Aug 2024

0 answers

161 views

PDFProcessing: Adding PDF Page from a PDF Document to another PDF Document

I tried doing the following:

using Stream stream = File.OpenRead(fileName);
RadFixedDocument pdfDocument = new PdfFormatProvider().Import(stream);
RadFixedDocument pdfNew = new();
pdfNew.Pages.Add(pdfDocument.Pages.First());

I get the following error:

System.ArgumentException: 'The document element is associated with another parent. (Parameter 'item')'

Is there a way to clone a page, so it can be added to another document?

PdfProcessing

asked on 20 Aug 2024

2 answers

245 views

How to render unicode checkbox u2612 and u2610 in PDF? Works ok in Word (Processing 2024.3.802)

I am having trouble getting some HTML converted to PDF to render Unicode checkboxes.

\u2612 ☒ and \u2610 ☐

They appear ok in the word conversion, but are missing in PDF

Here is the same code

using Telerik.Documents.ImageUtils;
using Telerik.Windows.Documents.Flow.FormatProviders.Html;
using Telerik.Windows.Documents.Flow.Model;

namespace Web.Tests.Pdf;

public class PdfRenderTests
{
    private readonly IHtmlToWordConverter _htmlToWordConverter = new HtmlToWordConverter();
    string path = "c:\\\\temp\\\\pdf\\\\";

    [Fact]
    public void CanRenderCheckbox()
    {
        var html = "<span class=\"checkbox\">\u2612 Yes \u2610 No</span>";
        var htmlDocument = _htmlToWordConverter.ConvertHtmlToWord(html);
        var docxProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider();
        using var memoryStream = new MemoryStream();
        docxProvider.Export(htmlDocument, memoryStream);
        var documentBytes = memoryStream.ToArray();

        File.WriteAllBytes($"{path}Test.docx", documentBytes);

        var pdfBytes = PdfConverter.ConvertDocxToPdf(documentBytes);
        File.WriteAllBytes($"{{path}}Test.pdf", pdfBytes);
    }
}

public interface IHtmlToWordConverter
{
    RadFlowDocument ConvertHtmlToWord(string html);
}

public class HtmlToWordConverter : IHtmlToWordConverter
{
    public RadFlowDocument ConvertHtmlToWord(string html)
    {
        var htmlFormatProvider = new HtmlFormatProvider();
        return htmlFormatProvider.Import(html);
    }
}

public static class PdfConverter
{
    static PdfConverter()
    {
        var defaultImagePropertiesResolver = new ImagePropertiesResolver();
        Telerik.Windows.Documents.Extensibility.FixedExtensibilityManager.ImagePropertiesResolver =
            defaultImagePropertiesResolver;
    }

    public static byte[] ConvertDocxToPdf(byte[] docxBytes)
    {
        var docxProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider();
        var pdfProvider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider();

        var document = docxProvider.Import(docxBytes);

        using var memoryStream = new MemoryStream();
        pdfProvider.Export(document, memoryStream);
        return memoryStream.ToArray();
    }
}

PDF Output:

Word Output

PdfProcessing

answered on 20 Aug 2024