When a list item with applied first line indent is exported to PDF, the bullets are with wrong indent (images attached)

Partial workaround: Remove the first line indent and set it as left indent in order to preserve the visualization of the document
editor.ChangeParagraphLeftIndent(paragraph.FirstLineIndent + paragraph.LeftIndent);
editor.ChangeParagraphFirstLineIndent(0);

Workaround: Manipulate the clipboard content in CommandExecuting even handler:

private void RichTextBox_CommandExecuting(object sender, Telerik.Windows.Documents.RichTextBoxCommands.CommandExecutingEventArgs e)
{
    if (e.Command is PasteCommand)
    {
        DocumentFragment document = ClipboardEx.GetDocument();
        bool hasChangedDocument = false;

        foreach (FieldRangeStart fieldStart in document.EnumerateChildrenOfType<FieldRangeStart>())
        {
            foreach (Span span in fieldStart.Field.GetFragmentByDisplayMode(FieldDisplayMode.Code).EnumerateChildrenOfType<Span>())
            {
                span.ForeColor = Colors.Black;
                hasChangedDocument = true;
            }
        }

        if (hasChangedDocument)
        {
            ClipboardEx.SetDocument(document);
        }
    }
}

The TableStylesGallery keeps a reference to the document, which doesn't allow the GC to collect it. The issue is reproducible when the document is loaded in RadRichTextBox in the constructor of the window or in its Loaded event.

Please look for the same topic in the forum for context. 
@Todor:
Am attaching the wmf file and png file that don't get rendered.

Images with display: none could be made not-visible in the UI. The other elements could be skipped and not imported.

In MS Word, decimal tab stops affect paragraph layout in table cells even if tab character is not inserted. The reasoning is that it's hard to insert tab symbol in table cell, as pressing Tab navigates to the next cell (Ctrl+Tab should be used, or default behavior should be configured). 

When a table is copied (without a paragraph before it) and pasted as first element in a Section in RadRichTextBox with Track Changes enabled, accepting all changes throws (handled) InvalidCastException. Changes are not accepted.

Workaround: Attach to RadRichTextBox.CommandExecuting event, and add paragraph before the table in the document fragment in the clipboard.
private void RadRichTextBox_CommandExecuting(object sender, Telerik.Windows.Documents.RichTextBoxCommands.CommandExecutingEventArgs e)
{
    if (e.Command is Telerik.Windows.Documents.RichTextBoxCommands.PasteCommand)
    {
        if (this.radRichTextBox.Document.IsTrackChangesEnabled)
        {
            DocumentFragment documentFromClipboard = ClipboardEx.GetDocument();
 
            if (documentFromClipboard != null)
            {
                e.Cancel = true;
 
                RadDocument documentFormClipboard = documentFromClipboard.ToDocument();
 
                if (documentFormClipboard.EnumerateChildrenOfType<Table>().Count() > 0)
                {
                    Section firstSection = documentFormClipboard.Sections.FirstOrDefault();
                    if (firstSection.EnumerateChildrenOfType<Table>().Count() > 0)
                    {
                        if (firstSection.EnumerateChildrenOfType<Table>().FirstOrDefault() != null)
                        {
                            Table table = firstSection.EnumerateChildrenOfType<Table>().FirstOrDefault();
                            Paragraph paragraph = new Paragraph() { SpacingAfter = 0, SpacingBefore = 0, LineSpacing = 0, FontSize = 1 };
                            firstSection.Blocks.AddBefore(table, paragraph);
 
                            RadDocumentEditor editor = new RadDocumentEditor(this.radRichTextBox.Document);
                            DocumentFragment fragment = new DocumentFragment(documentFormClipboard);
                            editor.InsertFragment(fragment);
                        }
                    }
                }
            }
        }
    }
}

When table cell text alignment (including horizontal and vertical alignment) is applied to a specific part of the table (e.g. First Row, First Column, etc.), the horizontal alignment is not applied. Only the vertical alignment is applied. If the alignment is applied to the whole table, then everything works as expected.

When comments panel is closed while the caret is still in the comment body, most document commands (all except typing) continue to execute in the comment body.

The bug is regression introduced in 2013 Q3.

Workaround: save the document position of the caret before showing the comment and after hiding the comments' panel, apply the saved caret position to the document. Attached is a sample project with the fix.

When header/footer (HeaderFooterPresenterBase) is rendered, the model which corresponds to it (HeaderFooterBase's Body property) is not updated. The result is updated only in the presenter. Thus, when exporting the document or when checking the elements in the model, the value of the inline (span's text) is not updated.

Workaround: Update the fields in the headers/footers. RadDocumentEditor.UpdateAllFields() method can be used. Note that it works only for the main document and not its child documents, so different RadDocumentEditors should be created for each header/footer document.

For example for Input Method Editors like Marathi Indic Input, part of MS Indic Language input tool, downloadable from here: http://www.bhashaindia.com/ilit/Marathi.aspx.

Workaround: RadRichTextBox currently exposes customization point for implementing custom IMEs, see Custom IME Support: http://docs.telerik.com/devtools/wpf/controls/radrichtextbox/ime-support#custom-ime-support

Add support for All Capitals (All caps) and Small Capitals (Small caps) run property. MS Word has such option in Home -> Font -> Dialog Launcher -> Font -> All Caps/Small Caps.

All letters of such runs are visualized as capital letters.

The corresponding elements in OOXML are <w:caps /> and <w:smallcaps />.

After resizing the window, the text stays at the same location instead of moving to the next line. The result is overlapping text.

When a span or text is placed in <a> tag, but 'href' and 'name' attributes are missing, then the span/text is not imported from the HTML document.

Workaround: preprocess the HTML and add the 'href' attribute to all <a> elements.

Steps to reproduce:
1. Import the following HTML:

<html>
	<body>
		<a target="_blank">Some text</a>
	</body>
</html>

Expected: The hyperlink "Some text" is imported in the document.
Actual: The span "Some text" is not imported.

Currently, colors with alpha channel defined with 'rgba' function are not supported, for example the following:

<span style="background-color: rgba(0, 0, 0, 0.5);">Some text</span>

is imported as black color; semi-transparent colors are exported without the alpha channel.

HtmlFormatProvider cannot import a document that contains an image with invalid URI format. An UriFormatException is thrown and the whole import fails. Similar errors should be handled and the document should be imported.

More information: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/tt .

Note: this element is obsolete, and has the same meaning as <code>.

If span formatting command (bold, italic, strikethrough) is applied to selection over multiple paragraphs, and tracked with tracked changes; and later this tracked change is rejected, NullReferenceException is thrown. The exception is handled so the visible result for the end user is that the UI stops updating and any subsequent changes are not visible.

All Microsoft Office applications (Outlook, Exchange, Word, Excel) that can produce HTML are creating them with all of the CSS stylings commented with HTML comment, as follows: <style><!-- CSS --></style>
This is a problem as RadRichTextBox's HTML parser does not import the CSS when it is commented like that.

Workaround: Remove the HTML comment from the CSS style tag.