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layout default-layout
needAutoGenerateSidebar true
needGenerateH3Content true
noTitleIndex true
title Upgrade Guide Dynamsoft Document Viewer Documentation
keywords Documentation, Dynamsoft Document Viewer, Upgrade
breadcrumbText Upgrade Guide
description Upgrade guide for Dynamsoft Document Viewer

Upgrade Guide

Upgrading Dynamsoft Document Viewer from an old version to the latest version (v3.x as of now) is straightforward. You need to pay attention to the following changes:

There are some code snippets that are frequently used and we will talk about the changes you have to make.

Initialization of Edit Viewer

In v2.x, you can use an additional options parameter to enable the annotation icon in the default UI.

const editViewer = new Dynamsoft.DDV.EditViewer({
    container: "container",
    uiConfig: Dynamsoft.DDV.getDefaultUiConfig("editViewer", {includeAnnotationSet: true}),
});

In v3.x, the option is removed and the annotation icon is included in the default UI. So you can just initialize it with the following code:

const editViewer = new Dynamsoft.DDV.EditViewer({
    container: "container"
});

Default UI Config

The default UI elements may be different across different versions. Check out this post to learn about the default configs.

You can try to unify the UI across versions by specifying the UIConfig. But pay attention to supported elements of different versions.

Getting the Page Data

Before v3.x, getPageData() returns a promise object, which was time consuming as it required getting all the image blobs. In v3.x, it directly returns an IPageData object and you can retrieve image blobs with its functions.