It is also used extensively in web designing applications because templates can easily be made with this software. In fact PDF Maker has so much power that it is often used as the template engine for Microsoft Office applications like Outlook and Calendar. PDF Maker has been developed by Corel and is used by Microsoft for creating Word, Excel and PowerPoint documents. This is one of the most commonly used PDF creation programs for Windows operating systems. PDF Maker is a free ActiveX Dynamic Link Library file, which allows the manipulation of PDF files.