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Xamarin / Guides

Page fit & default zoom mode in Xamarin

PDFViewCtrl's page view mode controls the default zoom level of pages and documents. New documents will automatically open at the zoom level specified by the mode.

Page view modes

PDFViewCtrl supports the following page view modes:

Page view mode (Xamarin.Android / Xamarin.iOS)DescriptionScreenshot-portraitScreenshot-landscape
PDFViewCtrl.PageViewModes.FitPage / pdftron.PDF.PageViewModes.e_fit_pageThe zoom is set so that the entire page is visible without scrolling.quick menu imagepage view mode
PDFViewCtrl.PageViewModes.FitWidth / pdftron.PDF.PageViewModes.e_fit_widthThe zoom is set so that the page's width matches the viewer's width.quick menu imagepage view mode
PDFViewCtrl.PageViewModes.FitHeight / pdftron.PDF.PageViewModes.e_fit_heightThe zoom is set so that the page's height matches the viewer's height.quick menu imagepage view mode
PDFViewCtrl.PageViewModes.Zoom / pdftron.PDF.PageViewModes.e_zoomThe viewer's zoom is not adjusted based on the page.quick menu imagepage view mode

Set the default page fit mode

You can set a default page fit mode in your PDFViewCtrl by using PageRefViewMode property.

Set the page fit mode dynamically

If you want to dynamically change the page fit mode, use PageViewMode property. Note that when the user flips the page, the page view mode will be automatically reset to the default mode set by PageRefViewMode.

// Xamarin.Android
mPdfViewCtrl.PageViewMode = pdftron.PDF.PDFViewCtrl.PageViewModes.FitPage;

// Xamarin.iOS
mPdfViewCtrl.PageViewMode = pdftron.PDF.PageViewModes.FitPage;

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