WebViwever Zoom

Product: WebViewer

Product Version: Latest


I have been wondering if there is any possibility to set the minimal and the maximum zoom value? For example the max would be like 150 and the minimal would be the mode fitPage. I have noticed that I can make the pdf very very tiny if I zoom out.

Kind Regards

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Hi there,

You can use instance.setMinZoomLevel(zoomLevel) and instance. setMaxZoomLevel(zoomLevel) to set the minimal and the maximum zoom level.

  .then(function(instance) {
    instance.setMinZoomLevel('10%'); // or setMinZoomLevel(0.1)
    instance.setMaxZoomLevel('150%'); // or setMaxZoomLevel(1.5)

Please look at this API doc for detail: PDFTron WebViewer Class: WebViewerInstance
Let us know if this helps.

Best Regards,

Jimmy Lin

Software Developer

PDFTron Systems, Inc.


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Hi Jimmy,

I am so sorry, I have missed this setting.

Thank you!

Hi Denisa,

No problem! Glad that helped, and let us know if you have further questions.