Win2PDF is free to use for personal or noncommercial use, but you must purchase the software to remove the extra page from each document. Once you purchase the Win2PDF software, you will be emailed a license code. After the license code is entered, the extra page will not appear on any new PDF files.
The Win2PDF license is sold as a permanent, perpetual license. It will never expire, and it does not require any subscription to use it.