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.... QR , Aztec , Pdf417 , Code39 , etc)...$fileName = __DIR__ . "/../testdata/Qr.png" ; $generateApi = new GenerateApi...