Dev Center
Table of contents

Thanks for Downloading Dynamic Web TWAIN 30-Day Trial!

Your download will start shortly. If your download does not begin, click here to retry.

Capture/Image Source

Can I import existing images or PDF documents using the Dynamic Web TWAIN SDK?

Yes, Dynamic Web TWAIN supports loading PNG, JPG, BMP, image-only PDF, and TIFF files. But if you need to support text-based PDF files, you also require the PDF Rasterizer Addon. See more here.

Code snippet

var onSuccess = function() {
    console.log("Loaded a file successfully!");
var onFailure = function(errorCode, errorString) {
DWObject.IfShowFileDialog = true;
// PDF Rasterizer Addon is used here to ensure text-based PDF support
    convertMode: Dynamsoft.DWT.EnumDWT_ConvertMode.CM_RENDERALL,
        renderAnnotations: true,
        resolution: 300,


Is this page helpful?

YesYes NoNo

In this article:

latest version

    • Latest Version (18.5)
    • Version 18.4
    • Version 18.3
    • Version 18.1
    • Version 18.0
    • Version 17.3
    • Version 17.2.1
    • Version 17.1.1
    • Version 17.0
    • Version 16.2
    • Version 16.1.1
    Change +