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....to combine two or more PDF files into a single PDF. In such cases...don’t want to print various PDF files like reports, receipts, etc...