Merge pull request #1205 from syncfusion-content/260501

260501 : Add UG documentation for Mangnifying pdf documents in windowsforms

Author: Vikassekar

WindowsForms-toc.html

@@ -3702,7 +3702,8 @@
 			<li><a href="/windowsforms/PDF-Viewer/Localization">Localization</a></li>
 			<li><a href="/windowsforms/PDF-Viewer/Working-with-themes">Working with themes</a></li>
 			<li><a href="/windowsforms/PDF-Viewer/Interaction-Modes">Working with Interaction Modes</a></li>
-			<li><a href="/windowsforms/PDF-Viewer/Interaction-Modes">Working with ErrorOccured Event</a></li>
+			<li><a href="/windowsforms/PDF-Viewer/ErrorOccured Event">Working with ErrorOccured Event</a></li>
+                         <li><a href="/windowsforms/PDF-Viewer/Magnifying-pdf-documents">Magnifying PDF documents</a></li>
 			<li>
 				How To
 				<ul>

WindowsForms/PDF-Viewer/Magnifying-PDF-documents.md

@@ -0,0 +1,58 @@
+---
+layout: post
+title: Magnifying PDF documents in WinForms Pdf Viewer control | Syncfusion<sup>&reg;</sup>;
+description: Learn about Magnifying PDF documents support in Syncfusion<sup>&reg;</sup>;WinForms Pdf Viewer control, its elements and more.
+platform: WinForms
+control: PDF Viewer
+documentation: ug
+---
+
+# Adjust the magnification of PDF documents using the WinForms PDF Viewer
+
+The WinForms PDF Viewer has predefined set of zoom tools in the built-in toolbar, that allows you to change magnifications of the PDF document that is being displayed.
+
+![Zoom tools of WinForms PDF Viewer](images/zoom tools.png)
+
+1.	**Combo box**: It allows you to select a zoom percentage from the pre-defined set of values listed in the dropdown. Since it is editable, you can also provide your zoom values by double editing the text area.
+2.	**Zoom out button**: It allows you to reduce the zoom value by 25% from the current zoom percentage.
+3.	**Zoom in button**: It allows you to increase the zoom value by 25% from the current zoom percentage.
+4.	**Fit to width button**: It allows you to fit the document to the width of the control.
+5.	**Fit to page button**: It allows you to fit a whole page in the window and to view only one page at a time.
+
+### Magnify the document to a given zoom percentage
+
+You can magnify the document to a given zoom percentage by using the [ZoomTo](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.PdfViewer.PdfViewerControl.html#Syncfusion_Windows_Forms_PdfViewer_PdfViewerControl_ZoomTo_System_Int32_) function of the PDF Viewer. Refer to the following code sample to apply the specific zoom percentage based on the page contents.
+
+{% tabs %}
+{% highlight c# %}
+//Zoom to 235 percentage.
+pdfViewer.ZoomTo(235);
+{% endhighlight %}
+{% endtabs %}
+
+The [ZoomPercentage](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.PdfViewer.PdfViewerControl.html#Syncfusion_Windows_Forms_PdfViewer_PdfViewerControl_ZoomPercentage) property can be used to get the control's current zoom percentage.
+
+{% tabs %}
+{% highlight c# %}
+//Get the current zoom percentage.
+int currentZoomPercentage = pdfViewer.ZoomPercentage;
+{% endhighlight %}
+{% endtabs %}
+
+## Zoom modes
+
+As stated above, the PDF Viewer supports the fit to page and fit to width zoom modes. You can change the zoom mode, using the [ZoomMode](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.PdfViewer.PdfViewerControl.html#Syncfusion_Windows_Forms_PdfViewer_PdfViewerControl_ZoomMode) property of the PDF Viewer. Refer to the following code sample to change the zoom mode.
+
+{% tabs %}
+{% highlight c# %}
+//To apply fit-to-page zoom mode.
+pdfViewer.ZoomMode = ZoomMode.FitPage;
+// To apply fit-to-width zoom mode.
+pdfViewer.ZoomMode = ZoomMode.FitWidth;
+{% endhighlight %}
+{% endtabs %}
+
+## Mouse and keyboard shortcuts
+
+**Ctrl (key) + Scroll the mouse wheel up** - To perform zoom in.
+**Ctrl (key) + Scroll the mouse wheel down** - To perform zoom out.