Open a PDF from an array buffer in MAUI

Nutrient MAUI SDK supports opening a document from a number of formats. This guide explains how to use an array buffer to display a document in PDFView.

Introduction

To open a document, you need to add PDFView to your desired XAML. You’ll also need to assign a Name for interacting with it through code. In this example, PDFView is named PDFView:

<pspdfkit:PDFView x:Name="PDFView" Initialized="OnPDFViewInitialized"
                  License="{OnPlatform 
                    Android={StaticResource AndroidLicenseKey},
                    iOS={StaticResource iOSLicenseKey},
                    MacCatalyst={StaticResource MacCatalystLicenseKey},
                    WinUI={StaticResource WindowsLicenseKey}}" />

The rest of the document opening process needs to be done after the PDFView control is loaded. The easiest way to ensure it’s loaded is by using the PDFView.Initialized event as shown above. Alternatively, you can subscribe to it in code-behind as follows:

PDFView.Initialized += (sender, e) =>
{
    // ...
};

If you don’t intend to open a document straight away and you know that PDFView will always be initialized, you can skip this step and open the document whenever it’s convenient.

Opening a document from an array buffer

The following example code demonstrates how to open a document from a byte array:

byte[] documentAsBuffer = /* document read as byte array */;

try
{
    var document = await PSPDFKitController.LoadDocumentFromBufferAsync(documentAsBuffer,
        PSPDFKitController.CreateViewerConfiguration());
}
catch (Exception ex)
{
    // Handle exception.
}