I figured out the problem with your code. The problem is GetRectCoordinatesOnDocumentInch does not mathematically consider the Zoom amount of the DocumentViewer. Basically if you take the values returned by GetRectCoordinatesOnDocumentInch and divide that by GdViewer.Zoom you will get the correct co...

In our application, we allow the user to define a rectangle on a PDF document using the WPF GdViewer control. When we use SetRectCoordinatesOnDocumentInch, and immediately call GetRectCoordinatesOnDocumentInch, the coordinates returned to not match what was passed to set. Here is some sample data. d...

How do we force the WPF viewer to view temp images so it does not lock the source file? This is preventing me from burning annotations and modifying the original images.

Suggestions?

It turned out that when using the MVVM pattern, you must ensure you are calling the view document api after the view has been fully initialized. In this case, the solution was the extract an interface from the view-model and call the view document api after the GdViewer has been fully loaded.

I am on version 11.1.0.14.

I'm having a problem where the new viewer is throwing a NullReferenceException when displaying a PDF. I attached the PDF in question to the post. The PDF is converted from a TIFF image and opens fine in all viewers, and it is converted by using GdPicture. I can't really debug this because you obfusc...