I’m currently evaluating PDFTron library for our UWP application.
I am reviewing if the following scenario can be implemented.
The user clicks the “MarqueeZoom button (name was randomly assigned)”.
In PDFViewer, select the area you want by dragging with the mouse.
(A dotted rectangle is drawn for dragging the mouse.)
Enlarge only the part corresponding to the drawn area.
In this process
I think it will be possible to implement it if you use the crop and zoom functions well.
I want a concrete implementation.