The tab stop line wrongly inherits its thickness from the previous table cell`s border.

The table is cut off when its width is larger than the default page width.

Workaround: 

var htmlProvider = new HtmlFormatProvider();
var document = htmlProvider.Import(File.ReadAllText(@"..\..\HTMLPage1.html"));

var tables = document.EnumerateChildrenOfType<Table>();
double maxWidth = document.Sections.FirstOrDefault().PageSize.Width;

foreach (var item in tables)
{
    if (item.PreferredWidth.Type == Telerik.Windows.Documents.Flow.Model.Styles.TableWidthUnitType.Fixed)
    {
        maxWidth = Math.Max(maxWidth, (item.PreferredWidth.Value + 100));
    }
}

foreach (var item in document.Sections)
{
    item.PageSize = new System.Windows.Size(maxWidth, item.PageSize.Height);
}

var pdfProvider = new PdfFormatProvider();
File.WriteAllBytes(@"..\..\result.pdf", pdfProvider.Export(document));

When a field is formatted using the numberInDash format through the section's PageNumberingSettings, the format is not parsed and the field result is not included in the PDF document.

Workaround: Remove the formatting from the section settings:

foreach (var section in this.document.Sections)
{
    section.PageNumberingSettings.PageNumberFormat = null;
}

WordsProcessing: Merging a RadFlowDocument document into the target document over around 130 times breaks formatting when the target document is an empty RadFlowDocument.

The workaround to this issue is to set the target document to an existing RadFlowDocument such as the source before merging.

To reproduce: 

-Change the normal style in a document and insert it into another document using RenameSourceStyle option.

The style is renamed and inserted but is not applied to the content.

Exporting RTF document to HTML when there is a multilevel numbered list, strips the numbers and leaves only the main number visible (e.g. 2.1 becomes 1). Also, the text overlaps the numbering. 

Workaround: Use numbers with letters instead of numbers only. (e.g. 1 a b c, 2 a b c).

Add support for the background tag: html - CSS color vs. background-color vs. background? - Stack Overflow

The background property might contain an actual image (it is not locked to color values).