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Using PdfFormatProvider

Updated on Jun 16, 2026

RadWordsProcessing provides a PdfFormatProvider class that allows you to export a RadFlowDocument to PDF.

To use PdfFormatProvider, add references to the following packages:

Telerik.Windows.Documents.Core
Telerik.Windows.Documents.Flow
Telerik.Windows.Documents.Flow.FormatProviders.Pdf
Telerik.Windows.Documents.Fixed

Starting with Q2 2025, the Zip Library is no longer used as an internal dependency in the rest of the Document Processing Libraries—PdfProcessing, WordsProcessing, SpreadProcessing, SpreadStreamProcessing. It is replaced by System.IO.Compression. The Telerik Zip Library continues to ship as a standalone library so you can still use it separately.

Export

To export a document to PDF, use the Export() method of PdfFormatProvider.

The .NET Standard specification does not define APIs for getting specific fonts. PdfFormatProvider needs access to the font data so that it can read it and add it to the PDF file. That is why you need to provide an implementation of the FontsProviderBase abstract class and set this implementation to the FontsProvider property of FixedExtensibilityManager. For detailed information, check the Cross-Platform Support article.

.NET Standard: To export images different than Jpeg and Jpeg2000 or ImageQuality different than High, set the JpegImageConverter property inside the FixedExtensibilityManager. For more information, check the FixedExtensibilityManager in the PdfProcessing Cross-Platform Support article.

The code snippet in Example 1 shows how to create a PdfFormatProvider instance and use it to export a RadFlowDocument to a file.

The PdfFormatProvider class of RadWordsProcessing is located in the Telerik.Windows.Documents.Flow.FormatProviders.Pdf namespace.

Example 1: Export to PDF File

Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider provider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider();
using (Stream output = File.OpenWrite("sample.pdf"))
{
    RadFlowDocument document = CreateRadFlowDocument();

    provider.Export(document, output, TimeSpan.FromSeconds(10));
}

The result from the method is a document that you can open in any application that supports PDF documents.

Example 2 demonstrates how to export the contents of a RadFlowDocument to a RadFixedDocument.

Example 2: Export to RadFixedDocument

RadFlowDocument document = CreateRadFlowDocument();

Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider provider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider();

RadFixedDocument fixedDocument = provider.ExportToFixedDocument(document, TimeSpan.FromSeconds(10));

RadFixedDocument is the base class of the RadPdfProcessing library. Additional information on the library and its functionality is available in the RadPdfProcessing Overview.

Using PdfFormatProvider

Export

See Also