Hi Edward,
Greetings
from Syncfusion,
In our PDF Viewer, from Essential Studio release 16.4.0.42
we are using Pdfium as default rendering engine. In which PDF document page
data is send as image data from sever to client for rendering and further
processing in PDF Viewer. So, on resizing we have sent the request again
to get the image with current zoom percentage to persist the clarity of the
content.
However, we can restrict this by using the Syncfusion
rendering engine in which the PDF document page content are drawn as path there
will not be any clarity loss on magnifications. Please find the below link to
switch to the Syncfusion rendering engine,
https://help.syncfusion.com/js/pdfviewer/how-to-use-pdfium-rendering-engine-in-pdf-viewer#switching-between-the-syncfusion-rendering-engine-and-pdfium-rendering-engine
Please try this and let us know if you have any concerns on
this.
Regards,
Akshaya