Change Flow Document Properties when converting to PDF

Updated on Apr 24, 2026

Version	Product	Author
2020.1.218	RadWordsProcessing	Dimitar Karamfilov

Description

The RadWordsProcessing library allows you to convert various documents formats (docx, rtf, txt, html) to PDF. When converting you may need to modify the document properties (page size or orientation, margins).

Solution

Change the properties of the RadFlowDocument.

Change the RadFlowDocument properties while exporting.

csharp

    HtmlFormatProvider htmlProvider = new HtmlFormatProvider();
    RadFlowDocument document = htmlProvider.Import(html);

    foreach (var section in document.Sections)
    {
        section.PageMargins = new Padding(150);
        section.PageSize = PaperTypeConverter.ToSize(PaperTypes.A4);
        section.Rotate(PageOrientation.Landscape);
    }

    PdfFormatProvider pdfProvider = new PdfFormatProvider();
    
    using (Stream output = File.Create(save))
    {              
        pdfProvider.Export(document, output);
    }