Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....example shows how to generate a QR code and save it as a PNG file...PHP.Java.lic" ); $filePath = "qr.png" ; $generator = new \Asp...