HOW TO: Combine Documents in JavaScript Using a Virtual Document

#1 Posted : Tuesday, October 16, 2018 8:14:08 AM(UTC)

Anthony Northrup

Groups: Registered, Tech Support, Administrators
Posts: 199

Was thanked: 28 time(s) in 28 post(s)

Combining documents is very straight forward using the LEADTOOLS Documents SDK. Below I've highlighted the key steps necessary for the combining process.

Since loading documents is asynchronous in JavaScript, I've opted to load all the child documents first before merging. This can be done using any of the DocumentFactory's load methods:

Once you have all the child documents loaded, you'll need to create a new virtual document using the DocumentFactory.create(CreateDocumentOptions) method:

Code:

var createOptions = new lt.Document.CreateDocumentOptions();
var mergedDocument = lt.Document.DocumentFactory.create(createOptions);

Now add the pages for each child document:

Code:

for (var i = 0; i < childDocument.pages.count; i++)
    mergedDocument.pages.add(childDocument.pages.item(i));

That's it. You can now display this merged document using our DocumentViewer, or convert it using the documents service.

Here is a sample project that includes the code above. Simply refer to the loadFromUris method within app.js:

File Attachment(s):

JS Merge.zip (356kb) downloaded 132 time(s).

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Anthony Northrup
Developer Support Engineer
LEAD Technologies, Inc.

1 user thanked Anthony Northrup for this useful post.

George N on 11/9/2023(UTC)


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HOW TO: Combine Documents in JavaScript Using a Virtual Document