PDF.js Online is a free extension to PDF.js - the open-source rendering engine & viewer. It offers developers easier way to embed the PDF.js viewer and also add add annotations and form filling to the PDF viewer. PDF.js Online is compatible with all JavaScript frameworks and can be used to integrate & embed within any application or workflow.
You can integrated PDF.js Online in minutes in several different ways:
Integrate using REST API
Integrate using Sample Code
PDF.js is great when you are a developer and you want to simply learn and have time to integrate a pdf viewer within your application.
You should use pdf.js when you simply want to display PDF files with your application or workflow and don't need extended features like annotations, magnifiying zoom, form filling etc.
PDF.js Online extends pdf.js and makes it much more easier integrate with a simple wizard like tool. You also get additional user oriented features like easier integration, annotations, form filling etc. Compatible with all JavaScript frameworks, the viewer can be directly embedded and customized within any web application and does not require you to know programming or coding.