LEAD is continuously updating and adding new features to LEADTOOLS. One feature that was rolled into Version 19 after the initial release includes enhanced SVG support. This enhancement allows users to load document and vector formats as SVG, which can then be handed off to other parts of LEADTOOLS such as the Document Writers. In other words, you can convert from formats such as DOC, PDF, DWG, DXF, etc. to other document formats such as PDF/A, HTML, and SVG without rasterization or OCR.
In Convert a Word Document to PDF (C#), I attached a project to show how to do the conversion in .NET. Now I have attached a C/C++ version of the project that will convert vector and document formats to PDF.