Save and Export PDFs in C#

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Originally Posted On: https://ironpdf.com/docs/questions/export-save-pdf-csharp/

IronPDF is a .NET library that allows you to use C# to save your HTML as a PDF. It also allows C# / VB developers to edit PDF documents programatically.

To Export our PDF documents we have 3 options – all based on the IronPDF.PdfDocument Object.

Use IronPDF.PdfDocument.SaveAs() to save your PDF to disk.

You will find that this method supports adding password protection. You may also wish to explore the PdfDocument documentation to discover methods for digitally signing exported PDFS.

The IronPDF.PdfDocument.Stream property saves the PDF to memory using a System.IO.MemoryStream

The IronPDF.PdfDocument.BinaryData property exports the PDF document as binary data in memory.

This outputs the PDF as a ByteArray, which is expressed in C# as byte[].

To serve a PDF to the web, we need to send it as binary data rather than HTML.

2. /// send MyPdfDocument.Stream to this method
3. return new FileStreamResult(stream, “application/pdf”)
4. {
5. FileDownloadName = “file.pdf”
6. };

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1. byte[] Binary = MyPdfDocument.BinaryData;
2. Response.Clear();
3. Response.ContentType = “application/octet-stream”;
4. Context.Response.OutputStream.Write(Binary, 0, Binary.Length);
5. Response.Flush();

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