Nutrient UWP SDK 1.1 migration guide

This article provides a set of guidelines for migrating from version 1.0 to version 1.1 of Nutrient UWP SDK.

Class names and namespaces

To follow Microsoft guidelines, we renamed many of the classes, methods, and namespaces. Additionally, the organization of the namespaces has been improved to better reflect the purpose and relationship of the various parts of the SDK.

Here are the namespace and class name changes:

PdfView

The PDFView, now named PdfView, is located in the PSPDFKit.UI namespace. You must rename any references to the old name and namespace in your app’s XAML.

Here’s some typical XAML from 1.0:

<Page xmlns:pspdfkit="using:PSPDFKit">

  <pspdfkit:PDFView Name="myPdfView" License="{StaticResource license}" />

</Page>

And here is the equivalent for 1.1:

<Page xmlns:ui="using:PSPDFKit.UI">

  <ui:PdfView Name="myPdfView" License="{StaticResource license}" />

</Page>

API

The API class has been deprecated, and in its place, there are now several new classes.

Pdf.Document

PSPDFKit.Pdf.Document represents a PDF document. You can get the currently open document from the property PdfView.Document. The Document class contains all the methods for working directly with a PDF document. Here are just some of the facilities provided by this class:

• Creating, updating, and modifying annotations

• Event handlers for annotation events

• Information about the PDF, such as the number of pages

• Exporting the document to a StorageFile or DataWriter

DocumentSource

Document has a DocumentSource property, which is the type PSPDFKit.Document.DocumentSource. This class represents the source of the document.

A DocumentSource can be created with its static methods CreateFromStorageFile or CreateFromBuffer:

var documentSource = DocumentSource.CreateFromStorageFile(aStorageFile);
await myPdfView.Controller.ShowDocumentAsync(documentSource);

UI controller

Methods and properties for querying and changing the UI can now be found in the PSPDFKit.UI.Controller class. The PdfView class has a property, Controller, exposing this class.

With the Controller, you can perform actions such as opening a PDF (as shown in the previous code example), changing the currently displayed page, or subscribing to UI events:

// Get notified if the currently displayed page changes to another page.
myPdfView.Controller.OnCurrentPageChanged += OnHandlePageChanged;

// Change to page 2.
await myPdfView.Controller.SetCurrentPageIndexAsync(2);

Search

Search facilities are no longer contained in a separate UWP component and now reside in the PSPDFKit component under the PSPDFKit.Search namespace. The search classes and methods have also been redesigned.

To search, use the method TextSearcher.SearchDocument, passing it a Document and a Query:

var myTextSearcher = new TextSearcher();
myTextSearcher += OnSearchResult;
myTextSearcher.SearchDocument(myPdfView, new Query("waldo"));

See the source code of the Catalog app included with the SDK for a complete example of searching and many other facilities.