Merge and combine multiple files into a PDF in C#

Nutrient .NET SDK combines multiple supported files into one PDF document.

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Prepare the project

Register the SDK license before running conversion operations. For setup details, refer to the getting started with .NET SDK guide.

using GdPicture14;

LicenseManager license = new LicenseManager();
license.RegisterKEY("");

using GdPictureDocumentConverter converter = new GdPictureDocumentConverter();

IEnumerable<string> sourceFiles = new List<string>
{
    "input-1.pdf",
    "input-2.pdf"
};

GdPictureStatus status = converter.CombineToPDF(sourceFiles, "output.pdf", PdfConformance.PDF);
if (status != GdPictureStatus.OK)
{
    throw new Exception(status.ToString());
}

The input list can contain supported file types, not only PDF files.

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