In this tutorial, you will learn how you can use PDF (Generator) SDK to create and modify PDF files using C# source code.
PDF (Generator) SDK is a complete toolkit of enhanced PDF engines working in C# and VB.NET that can create a completely new PDF file or add content to the existing PDF).
In this short guide, we will demonstrate the following features of PDF (Generator) SDK in C#:
The source code snippet can be used to easily merge 2 PDF documents using PDF SDK in C#.
Just copy-paste the following C# source code to see the program in action.
using System.Diagnostics;
using Bytescout.PDF;
namespace CopyPagesFromOneDocumentToAnother
{
class Program
{
static void Main(string[] args)
{
// Open first document
Document document1 = new Document("document1.pdf");
document1.RegistrationName = "demo";
document1.RegistrationKey = "demo";
// Open second document
Document document2 = new Document("document2.pdf");
document2.RegistrationName = "demo";
document2.RegistrationKey = "demo";
// Add pages from document2 to document1
for (int i = 0; i < document2.Pages.Count; ++i)
{
document1.Pages.Add(document2.Pages[i]);
}
// Save merged document
document1.Save("MergedDocument.pdf");
// Open result document in default associated application (for demo purpose)
ProcessStartInfo processStartInfo = new ProcessStartInfo("MergedDocument.pdf");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
}
}
You can use this source code sample to quickly insert a page to PDF using PDF SDK in C#.
You can see the program in action and add a PDF page using the following C# source code.
using System.Diagnostics;
using Bytescout.PDF;
namespace InsertPageToPDF
{
class Program
{
static void Main(string[] args)
{
// Open first document
Document document1 = new Document("document1.pdf");
document1.RegistrationName = "demo";
document1.RegistrationKey = "demo";
// Open second document
Document document2 = new Document("document2.pdf");
document2.RegistrationName = "demo";
document2.RegistrationKey = "demo";
// Page index to insert document
int pageIndexToAdd = 1;
// Add pages from document2 to document1
for (int i = 0; i < document2.Pages.Count; ++i)
{
document1.Pages.Insert((pageIndexToAdd++), document2.Pages[i]);
}
// Save merged document
document1.Save("MergedDocument.pdf");
// Open result document in default associated application (for demo purpose)
ProcessStartInfo processStartInfo = new ProcessStartInfo("MergedDocument.pdf");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
}
}
The following source code sample is used for PDF form filling with the help of PDF SDK in C#.
In order to see the program how to fill a PDF form, just copy-paste the C# snippet below.
using System;
using System.Diagnostics;
using Bytescout.PDF;
namespace FillFormExample
{
/// <summary>
/// This example demonstrates how to fill PDF form programmatically.
/// </summary>
class Program
{
static void Main()
{
// Load PDF form
Document pdfDocument = new Document(@"form.pdf");
pdfDocument.RegistrationName = "demo";
pdfDocument.RegistrationKey = "demo";
Page page = pdfDocument.Pages[0];
// Get widget by its name and change value
((EditBox) page.Annotations["editBox1"]).Text = "Test 123";
((EditBox) page.Annotations["editBox2"]).Text = "Test 456";
((CheckBox) page.Annotations["checkBox1"]).Checked = true;
// Save modified document
pdfDocument.Save("result.pdf");
// Cleanup
pdfDocument.Dispose();
// Open result document in default associated application (for demo purpose)
ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
}
}
This C# source code sample would be used to quickly create and use a template in PDF using PDF SDK in C#.
Just copy-paste the following C# source code to see the program in action.
using System.Diagnostics;
using System.Drawing;
using Bytescout.PDF;
using Font = Bytescout.PDF.Font;
using SolidBrush = Bytescout.PDF.SolidBrush;
namespace Templates
{
/// <summary>
/// This example demonstrates how to use templates.
/// </summary>
class Program
{
static void Main()
{
// Create new document
Document pdfDocument = new Document();
pdfDocument.RegistrationName = "demo";
pdfDocument.RegistrationKey = "demo";
// Prepare simple template (for example, a logo) and draw it on every page
// Create template of specified size
GraphicsTemplate template = new GraphicsTemplate(250, 50);
// Draw the logo
template.DrawRectangle(new SolidBrush(new ColorRGB(192, 192, 255)), 0, 0, 250, 50);
template.DrawString("My Company Logo", new Font(StandardFonts.TimesBoldItalic, 24), new SolidBrush(), 30, 10);
// Add few pages and draw the prepared template on each one
for (int i = 0; i < 3; i++)
{
Page page = new Page(PaperFormat.A4);
page.Canvas.DrawTemplate(template, 10, 10);
pdfDocument.Pages.Add(page);
}
// Save document to file
pdfDocument.Save("result.pdf");
// Cleanup
pdfDocument.Dispose();
// Open result document in default associated application (for demo purpose)
ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
}
}
This C# source code snippet might be used for Reg Ex search and highlights in PDF – see this tutorial using PDF SDK in C#.
Just use the C# source code snippet below to see the program in action.
using System.Diagnostics;
using System.Drawing;
using Bytescout.PDFExtractor;
using Bytescout.PDF;
using Pen = Bytescout.PDF.Pen;
using SolidBrush = Bytescout.PDF.SolidBrush;
namespace SearchAndHighlightExample
{
class Program
{
static void Main(string[] args)
{
const string inputFile = @"sample.pdf";
const int pageIndex = 0;
const string searchPattern = "\\d+\\.\\d+";
// Prepare TextExtractor
using (TextExtractor textExtractor = new TextExtractor("demo", "demo"))
{
textExtractor.RegexSearch = true;
textExtractor.LoadDocumentFromFile(inputFile);
// Load document with PDF SDK
using (Document pdfDocument = new Document(inputFile))
{
pdfDocument.RegistrationName = "demo";
pdfDocument.RegistrationKey = "demo";
Page pdfDocumentPage = pdfDocument.Pages[pageIndex];
Canvas canvas = pdfDocumentPage.Canvas;
SolidBrush fillBrush = new SolidBrush(new ColorRGB(255, 0, 0));
fillBrush.Opacity = 50; // make the brush transparent
// Search for pattern and highlight found pieces
if (textExtractor.Find(pageIndex, searchPattern, caseSensitive: false))
{
do
{
foreach (var foundPiece in textExtractor.FoundText.Elements)
{
// Inflate the rectangle a bit
RectangleF rect = RectangleF.Inflate(foundPiece.Bounds, 1, 2);
// Draw rectangle over the PDF page
canvas.DrawRectangle(fillBrush, rect);
}
} while (textExtractor.FindNext());
}
// Save as new PDF document
pdfDocument.Save("result.pdf");
// Open result document in default associated application (for demo purposes)
Process.Start("result.pdf");
}
}
}
}
}
The following video guide would be also useful:
The above code snippets demonstrate just a few of the multiple functionalities PDF (Generator) SDK can offer. Check the documentation for more.
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