Adding More Content to a PDF Report

Environment

Version	Product	Author
19.1.25.521	Telerik Reporting	Desislava Yordanova
2025.2.520	RadPdfProcessing	-

Description

This article demonstrates how to append a PDF, containing general terms and conditions, to the last page of a PDF document produced by exporting a Telerik Report(.trdp/.trdx files exported as PDF documents). The terms and conditions PDF should always appear at the end, regardless of the report's content.

Solution

Requirements and Steps

To achieve this functionality, use:

• Telerik Reporting to generate PDF reports.
• Telerik Document Processing to manipulate the PDF and add some extra content.

Follow these steps:

1. Generate the Report PDF using Telerik Reporting
   Use Telerik Reporting to render the report as a PDF file. Refer to the Generating Reports Locally with Code article for more details on generating reports locally.
2. Import and Modify the PDF Report using Telerik Document Processing
   Use Telerik Document Processing's RadPdfProcessing library to import the generated PDF, append a new page with the terms and conditions and export the final document.

Example Code

Below is a complete example demonstrating how to generate the report PDF and append a new page:

using System.Diagnostics;
using Telerik.Windows.Documents.Fixed.FormatProviders.Pdf;
using Telerik.Windows.Documents.Fixed.Model;
using Telerik.Windows.Documents.Fixed.Model.Data;
using Telerik.Windows.Documents.Fixed.Model.Editing;
using Telerik.Windows.Documents.Fixed.Model.Text;

namespace GeneratePDFReportsAndUpdate
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Telerik.Documents.ImageUtils.ImagePropertiesResolver defaultImagePropertiesResolver = new Telerik.Documents.ImageUtils.ImagePropertiesResolver();
            Telerik.Windows.Documents.Extensibility.FixedExtensibilityManager.ImagePropertiesResolver = defaultImagePropertiesResolver;
            //https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/cross-platform/images

            string reportFolderPath = @"..\..\..\Reports";
            string pdfFolderPath = reportFolderPath + @"\Pdf Files";
            string[] reportFiles = Directory.GetFiles(reportFolderPath);

            foreach (string reportFilePath in reportFiles)
            {
                var reportProcessor = new Telerik.Reporting.Processing.ReportProcessor();
                var deviceInfo = new System.Collections.Hashtable();

                var reportSource = new Telerik.Reporting.UriReportSource();
                reportSource.Uri = reportFilePath;

                Telerik.Reporting.Processing.RenderingResult result = reportProcessor.RenderReport("PDF", reportSource, deviceInfo);
                string fileName = result.DocumentName + "_byReporting." + result.Extension;
                string path = System.IO.Path.GetTempPath();
                string filePath = pdfFolderPath + @"\" + fileName;
                if (!result.HasErrors)
                {
                    using (System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Create))
                    {
                        fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
                    }
                }
                Process.Start(new ProcessStartInfo() { FileName = filePath, UseShellExecute = true });

                // By Document Processing
                string filePathToImport = pdfFolderPath + @"\" + fileName;

                Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider pdf_provider = new PdfFormatProvider();
                string[] pdfFilesByReporting = Directory.GetFiles(pdfFolderPath);


                fileName = result.DocumentName + "_byDPL." + result.Extension;
                filePath = pdfFolderPath + @"\" + fileName;

                using (Stream output = File.OpenWrite(filePath))
                {
                    //import the PDF report
                    RadFixedDocument fixedDocument = pdf_provider.Import(File.OpenRead(filePathToImport), TimeSpan.FromSeconds(10));

                    //add a new page to the document
                    //https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/model/textfragment

                    RadFixedPage page = new RadFixedPage();
                    fixedDocument.Pages.Add(page); 
                    FixedContentEditor editor = new FixedContentEditor(page);

                    SimplePosition simplePosition = new SimplePosition();
                    simplePosition.Translate(20, 20);
                    TextFragment textFragment = page.Content.AddTextFragment("General terms and conditions");
                    textFragment.CharacterSpacing = 5;
                    textFragment.WordSpacing = 15;
                    textFragment.Position = simplePosition;

                    SimplePosition simplePosition2 = new SimplePosition();
                    simplePosition2.Translate(20, 120);
                    TextFragment textFragment2 = new TextFragment("by Document Processing Libraries");
                    textFragment2.CharacterSpacing = 10;
                    textFragment2.WordSpacing = 20;
                    textFragment2.Position = simplePosition2;
                    page.Content.Add(textFragment2);


                    pdf_provider.Export(fixedDocument, output, TimeSpan.FromSeconds(10));
                }

                Process.Start(new ProcessStartInfo() { FileName = filePath, UseShellExecute = true });
            }
        }
    }
}

Key Steps Explained:

1. Generate a PDF: Use Telerik Reporting's ReportProcessor to render the .trdp file as a PDF.
2. Import the PDF: Use PdfFormatProvider from RadPdfProcessing to load the generated PDF.
3. Add a Page: Create a new page and use FixedContentEditor to add the terms and conditions text.
4. Export the Modified PDF: Save the final PDF with the appended terms and conditions.

See Also

• RadPdfProcessing Overview
• PDF Format Provider