ConvertToPdf converts document to PDF file.

ConvertToPdfWithOptions convert the document to PDF with file given options.

RegisterFont makes a PdfFont accessible for using in converting to PDF.

RegisterFontsFromDirectory registers all fonts from the given directory automatically detecting font families and styles.

Options contains the options for convert process - e.g ProcessFields is when document contains fields and the value need to be processed also.

FontStyle represents a kind of font styling.