Document Automation APIs along with open-source SDKs to enhance Java, Python, Node.js, C# .NET, Ruby, C++, and PHP applications to view, edit, annotate, convert, compare, e-sign, parse, split, merge, extract, redact, watermark, metadata, paraphrase, classify, repair, and translate Documents of almost all the popular file formats....you can easily annotate PDF documents on the cloud. In this article...we will learn how to annotate PDF documents using a REST API in...