Multitouch support for Pdf Viewer / Image Editor

[Christine]

Hello,

is there a possibility to support multitouch input on Pdf Viewer and Image Editor?

Moving and tapping is supported. So I can scroll through the pages for example. But I need to use zoom and pinch gesture for zooming in or out to documents / images also.

As we need to zoom just areas (e.g. maps with geo information) and keep the menus on top, the pages are not user-scalable as a whole:
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1,minimum-scale=1, user-scalable=no,text/html,charset=utf-8">

Is there any workaround to catch the event and set the zoom factor?

And is there a possibility to couple the mouse wheel / double click event to the zoom factor?

Thanks,

Christine

[Aleksandar]

Hi Christine,

We have a Feature request on improving the experience with zooming for the PDFViewer on mobile devices and I will urge you to vote on it here:

https://feedback.telerik.com/aspnet-core-ui/1481051-zoom-in-out-file-using-the-build-in-zoom-functionality-of-the-pdfviewer-when-zooming-with-two-fingers 

Indeed currently when when you "pinch-zoom" to zoom a PDF file it is zoomed using the browser's zoom functionality, but not the PDFViewer zoom command.

Regards,
Aleksandar
Progress Telerik