Join Word, PDF or Web documents together in C#

High-speed .NET library to merge office documents together and export the combined result to a variety of file formats

Use our document merging API to develop high-level, platform independent software for .NET and .NET Core platforms. This is a powerful software solution to join Word, PDF, Web documents using C#, F#, VB.NET and any other CLI/CLS compliant programming language.

Convert Word, PDF, JPG in C#

C# library allows .NET developers to convert Word, PDF and many other file formats. Powerful conversion engine analyses layouts and styles of the original documents, then exports the combined result to the required format.

Document conversions from one format to another may be tricky, unless you have a professional tool to do the job. Use C# to convert Word, PDF, JPG with maximum flexibility and speed. Run online live demo and check the highest quality of conversion right in a browser. DOCX Conversion API supports a bunch of useful options.

Merge Word, PDF, JPG into one file

This is a simple way of converting office documents from one format to another while leaving all the low-level details to Conversion API. C# library enables .NET developers to convert documents in many popular formats with maximum flexibility and efficiency:

  • Microsoft Word: DOCX, DOC, RTF, DOT, DOTM, DOTX, DOCM
  • OpenOffice: ODT, OTT
  • Fixed Layout: PDF, PostScript, XPS, OpenXPS
  • Images: PNG, JPG, GIF, BMP, TIFF, SVG, EMF
  • Web: HTML, MHTML
  • Others: MOBI, EPUB, Xaml, PCL, etc.

Convert multiple documents and save the result as a single file easily. If you develop code in C#, this will be simpler than it sounds. See C# example that iterates through documents and combines them:

Code example in C# to combine multiple files into one
Input files
Upload a file you want to merge
Run code
Upload a file you want to merge
Output format
Select the target format from the list
using Aspose.Words;

var fileNames = new List<string> { "Input1.docx", "Input2.docx" };

var output = new Document();
// Remove all content from the destination document before appending.
output.RemoveAllChildren();

foreach (string fileName in fileNames)
{
    var input = new Document(fileName);
    // Append the source document to the end of the destination document.
    output.AppendDocument(input, ImportFormatMode.KeepSourceFormatting);
}

output.Save("Output.pdf");
Run code

How to merge PDF, Word, JPG and other file formats in C#

  1. Install 'Aspose.Words for .NET'.
  2. Add a library reference (import the library) to your C# project.
  3. Open the source file in C#.
  4. Merge files into one.
  5. Call the 'AppendDocument()' method, passing an output filename with required extension.
  6. Get the combined result as a separate file.

C# library to merge files

There are three alternative options to install "Aspose.Words for .NET" onto your system. Please choose one that resembles your needs and follow the step-by-step instructions:

System Requirements

Our product is fully cross-platform and supports all major .NET implementations following '.NET Standard 2.0' specification:

  • Microsoft .NET Framework, starting from the earliest 2.0 version, and ending with the latest '.NET Framework 4.8'
  • .NET Core, starting from the earliest 2.0, and ending with the latest '.NET 6'
  • Mono >= 2.6.7

As far as .NET code doesn't depend on the underlying hardware or operating system, but only on a Virtual Machine, you are free to develop any kind of software for Windows, macOS, Android, iOS and Linux. Just make sure you have installed the corresponding version of .NET Framework, .NET Core, Windows Azure, Mono or Xamarin.

We recommend using Microsoft Visual Studio, Xamarin, and MonoDevelop integrated development environments to create C#, F#, VB.NET applications.

Fore more details please refer to Product Documentation.

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