Create a artwork programmatically..............

‌You want to create a PDF with graphical calls? This can be done, but you need to start with a good working knowledge of the PDF Specification ISO 32000-1 especially the Graphics and Text chapters. Once you have that you can make sense of the PDFEdit API, or some prefer to use low level Cos API calls. So expect a lot of work and study, don't expect to find samples to adapt.