Unlike most common PDF virtual printers, Batch WORD to PDF Converter enables you to convert MS WORD and more formats to PDF documents in bulk directly. You do not need the PDF virtual printer to convert files to PDF one by one any more. The program also has the unique capability to merge all converted documents into one PDF file. Besides MS WORD DOC/DOCX format, Batch WORD to PDF Converter can convert Excel (XLS, CSV, ODF, ODS), Powerpoint (PPT, PPTX, ODP, ODF), Rich text(RTF), Plain text (TXT) and more formats to PDF as well.
Additionally, this special tool has some security options allow you to set global authorities for the output PDF (like printing prevention copy prevention), and you can set an owner managing password to control the security levels of PDF files.
Difference from the free version: the free version would add a watermark on output PDF file.