Currently, the first document is loaded. 

Workaround:
Wait for the document to load before loading the new document. 

When there is no ToUnicode CMap, the text from the Simple Font instance should be extracted by mapping the glyph name to its corresponding charcode according to Adobe Glyph List. Additionally, the Differences array should be included in these calculations when there is custom encoding. The current implementation of RadPdfViewer makes ToString to the original char id byte value which leads to wrong characters. 

How to reproduce: check the attached project

Workaround: manually unload the document before disposing the control, the attached project includes a solution

How to reproduce: check the attached video
a slight cut off can also be observed with the ControlDefault and the TelerikMetro themes

Workaround: 
CommandBarDropDownList dropDownList = this.radPdfViewerNavigator1.CommandBarElement.FindDescendant<CommandBarDropDownList>();
dropDownList.MinSize = new Size(72, 22);

The exception is thrown during "Put" operator execution.

how to reproduce: check the attached file

workaround: resize the form

To reproduce:
Print the attached document with the MS Xps printer or PrimoPDF. 

To reproduce:

public Form1()
{
    InitializeComponent();

    this.radPdfViewer1.DocumentLoaded += radPdfViewer1_DocumentLoaded;
}

private void radPdfViewer1_DocumentLoaded(object sender, EventArgs e)
{ 
    var pdf = (RadPdfViewerElement)sender;
    var doc = new RadPrintDocument();

    doc.AssociatedObject = pdf.ElementTree.Control as RadPdfViewer; 
    doc.PrinterSettings.PrintRange = System.Drawing.Printing.PrintRange.SomePages;
    doc.PrinterSettings.FromPage = 2;
    doc.PrinterSettings.ToPage = 1;
    doc.PrinterSettings.PrintFileName = @"..\..\Once upon a time.pdf"; 
    pdf.Print(showPrinterSettings: false, document: doc);
}

Workaround: check FromPage  before printing.

There is opportunity to further optimize the caching mechanism of the image sources, which will reduce the memory consumption. The fast scrolling in a document containing big images could lead to an OutOfMemoryException.
Openining very large images as well. 

To reproduce:
- Print a document that fills the entire page.
- On the print preview dialog the page is centered however when printed it is not.

In addition, one should be able to control the page scaling. 

at System.Drawing.Drawing2D.GraphicsPath.Clone()
   at Telerik.WinControls.PdfViewer.PdfElementsRenderer.RenderGlyph(Glyph glyph)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawGlyph(Glyph glyph, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawGlyphsLayoutBox(GlyphsLayoutBox glyphBox, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContainer(Container container, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContainer(Container container, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawPage(ContentCollection content, Graphics graphics, Matrix pageTransform)
   at Telerik.WinControls.UI.RadFixedPageElement.pageRenderer_DoWork(Object sender, DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
   at System.Drawing.Drawing2D.GraphicsPath.Clone()
   at Telerik.WinControls.PdfViewer.PdfElementsRenderer.RenderGlyph(Glyph glyph)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawGlyph(Glyph glyph, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawGlyphsLayoutBox(GlyphsLayoutBox glyphBox, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContainer(Container container, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContainer(Container container, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawContentElement(IContentElement contentElement, Graphics graphics)
   at Telerik.WinControls.PdfViewer.FixedPageRenderer.DrawPage(ContentCollection content, Graphics graphics, Matrix pageTransform)
   at Telerik.WinControls.UI.RadFixedPageElement.pageRenderer_DoWork(Object sender, DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)

Workaround: print the document page by page:
private void radButton1_Click(object sender, EventArgs e)
{
    RadPrintDocument d = new RadPrintDocument();
    d.PrinterSettings.PrintRange = PrintRange.CurrentPage;
    d.AssociatedObject = this.radPdfViewer1;
    for (int i = 0; i < this.radPdfViewer1.Document.Pages.Count; i++)
    {
        d.CurrentPage = i;
        d.Print();
    }
}