Open Source .NET Library for PDF Document Processing

Getting Started with iText for .NET

iText for .NET is dual-licensed as AGPL/Commercial software. AGPL is a free / open-source software license. It is highly recommend using NuGet to add iText 7 Community to your project.

 Install Package itext7

.NET API to Create & Manipulate PDF Documents

iText for .NET allows software programmers to create as well as modify a PDF document inside their .NET applications. The Portable Document Format (PDF) is one of the World’s most used document formats and still very popular. Once the PDF document is created, you can also modify it with ease. The API gives you’re the power to insert new pages, add new content, to an existing page and much more.

// Initialize PDF writer
PdfWriter pdfWriter = new PdfWriter("fileformat.pdf");
// Creatre a new PDF document
PdfDocument pdfDocument = new PdfDocument(pdfWriter);
// Create a new document 
Document document = new Document(pdfDocument);
// Add text to the document
document.Add(new Paragraph("FileFormat.com - File Format Developer Guide"));
// Close document
document.Close();

Convert HTML to PDF Documents using .NET

iText 7 allows .NET programmers to easily convert HTML to PDF document by using Html2Pdf add on. Html2Pdf add-on enable software developers to parse HTML or XHTML snippets and the related CSS to PDF. With just few lines of code and lesser time Html2Pdf can provide you great results and will convert HTML files into rich, smart PDF documents.

// Open text file
 FileStream htmlSource = File.Open("fileformat.html", FileMode.Open);
 // Create PDF file
 FileStream pdfDest = File.Open("fileformat.pdf", FileMode.OpenOrCreate);
 // Intialize conversion properties
 ConverterProperties converterProperties = new ConverterProperties();
 // Convert HTML to PDF
 HtmlConverter.ConvertToPdf(htmlSource, pdfDest, converterProperties);

Merging Multiple PDF Files via .NET API

The open source library iText for .NET allows software programmers to merge multiple PDF files inside their.NET apps. It is very important to maintain the size and orientation of all the pages within the original files. The following C# code example shows how easily can developers combine different PDF files with just a couple of lines of code.

PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PdfMerger merger = new PdfMerger(pdf);

//Add pages from the first document
PdfDocument firstSourcePdf = new PdfDocument(new PdfReader(SRC1));
merger.merge(firstSourcePdf, 1, firstSourcePdf.getNumberOfPages());

//Add pages from the second pdf document
PdfDocument secondSourcePdf = new PdfDocument(new PdfReader(SRC2));
merger.merge(secondSourcePdf, 1, secondSourcePdf.getNumberOfPages());

firstSourcePdf.close();
secondSourcePdf.close();
pdf.close();