When converting HTML to DOCX, margins set on an HTML element are ignored. These styles are exported correctly when the HTML passed to the converter is formatted with indents. The following XUnit test demonstrates this behavior with a simplified example.

using Telerik.Windows.Documents.Flow.FormatProviders.Docx;
using Telerik.Windows.Documents.Flow.FormatProviders.Html;

namespace MSPI.Tests.Unit;

public class WordExportTest
{
    [Fact]
    public async Task TextExport()
    {
        const string formattedDocumentSavePath = @"C:\Testing\export-test-formatted.docx";
        const string formattedContent = """"
            <p>Test paragraph</p>
            <ol style="margin-left: 100px;">
                <li>Item 1</li>
                <li>Item 2</li>
            </ol>
        """";

        const string minifiedDocumentSavePath = @"C:\Testing\export-test-minified.docx";
        const string minifiedContent = """"<p>Test paragraph</p><ol style="margin-left: 100px;"><li>Item 1</li><li>Item 2</li></ol>"""";

        var htmlFormatProvider = new HtmlFormatProvider();
        var docxFormatProvider = new DocxFormatProvider();

        await using var minifiedDocumentMemoryStream = new MemoryStream();
        var minifiedRadFlowDocument = htmlFormatProvider.Import(minifiedContent, TimeSpan.FromSeconds(30));
        docxFormatProvider.Export(minifiedRadFlowDocument, minifiedDocumentMemoryStream, TimeSpan.FromSeconds(30));
        var minifiedBytes = minifiedDocumentMemoryStream.ToArray();
        await File.WriteAllBytesAsync(minifiedDocumentSavePath, minifiedBytes);

        await using var formattedDocumentMemoryStream = new MemoryStream();
        var formattedRadFlowDocument = htmlFormatProvider.Import(formattedContent, TimeSpan.FromSeconds(30));
        docxFormatProvider.Export(formattedRadFlowDocument, formattedDocumentMemoryStream, TimeSpan.FromSeconds(30));
        var formattedBytes = formattedDocumentMemoryStream.ToArray();
        await File.WriteAllBytesAsync(formattedDocumentSavePath, formattedBytes);
    }
}

The minified HTML produces the following document:

The formatted HTML produces the following document:

NullReferenceException when inserting a document containing a table with a document variable having a line break (\n) in its value.

Import a document that contains a picture content control and the following error occurs: 

Telerik.Windows.Documents.Flow.Model.Annotations.StructuredDocumentTags.Builders.SdtBuilderFailureException: 'Picture control cannot be used in selection that contains any non-image content, or more than a single image.'

Multiple CSS classes on an element are not correctly resolved when converted to inline styles.

Before:

.TelerikNormal {font-family: Calibri;font-size: 14.6666666666667px;margin-top: 0px;margin-bottom: 0px;line-height: 100%;color: #000000;}

.TelerikHeading3 {font-family: Calibri Light;font-size: 22.6666666666667px;}

<p class="TelerikNormal TelerikHeading3"><span>Test</span></p>

Due to order priority, the TelerikHeading3 values override the TelerikNormal values. The font-size becomes 22.6666666666667px.

Convert:

provider.ExportSettings.StylesExportMode = StylesExportMode.Inline;

<p style="font-family: Calibri;font-size: 14.6666666666667px;margin-top: 0px;margin-bottom: 0px;line-height: 100%;color: #000000;"><span>Test</span></p>

Getting an exception message when trying to view a document as a PDF using the PdfFormatProvider which started happening only after upgrading Telerik to the latest version, 7.1.0 in Telerik UI for Blazor.

Exception Message:

width should be greater or equal than 0. (Parameter 'width')

I have copied the stack trace and source of the exception below:

Source: Telerik.Documents.Fixed

Stack Trace:    at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.DrawHighlights(DrawLayoutElementContext context)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.Draw(DrawLayoutElementContext context)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Draw(IEnumerable`1 lineElements, DrawLayoutElementContext context)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Block.DrawInternal(FixedContentEditor editor, Rect boundingRect)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Telerik.Windows.Documents.Fixed.Model.Editing.Flow.IDrawArrangedElement.DrawArrangedElement(FixedContentEditor editor, Rect boundingRect)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Flow.SectionInfo.DrawArrangedElement(IBlockElement blockElement, Double horizontalOffset, Double verticalOffset)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Utils.SectionInfoExtensions.DrawArrangedElements(SectionInfo section, IList`1 elements)
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.Draw()
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage(SectionProperties sectionProperties)
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage()
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.AddBlock(IBlockElement blockElement, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportSection(Section section, RadFixedDocumentEditor editor)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportDocument(RadFlowDocument document, RadFixedDocumentEditor editor)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportInternal()
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.Export()
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportToFixedDocument(RadFlowDocument document, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output)
   at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Export(T document, Stream output)
   at Telerik.Windows.Documents.Common.FormatProviders.BinaryFormatProviderBase`1.Export(T document)

When you have indented and justified text, it is wrongly exported to PDF:

			<w:pPr>
				<w:spacing w:after="0" w:line="360" w:lineRule="auto"/>
				<w:ind w:left="567" w:right="567" w:firstLine="708"/>
				<w:jc w:val="both"/>
				<w:rPr>
					<w:rFonts w:ascii="Calibri Light" w:hAnsi="Calibri Light"/>
				</w:rPr>
			</w:pPr>

Generate a document with the following approach: https://docs.telerik.com/devtools/document-processing/knowledge-base/populate-table-data-mail-merge

Before calling MailMerge, add two document variables with the editor: https://docs.telerik.com/devtools/document-processing/libraries/radwordsprocessing/concepts/fields/document-variables 

 Replace cannot match whole word with special characters (e.g. "#", "@", "&") at the start/end.

Workaround (RegEx):

editor.ReplaceText(new Regex($"(?<=\\s|^|[\\c_]){placeholder}(?=\\s|$|[\\c_])"),"new content");

InvalidOperationException when cloning a document containing fields spanning multiple paragraphs.

Workaround: instead of new paragraphs, use line breaks (Shift+Enter).