To save the Gedcom file as a PDF using the "OnePage Genealogy" for Windows program, you can follow these steps:
1. Open the Gedcom file in the program.
2. Click on the "File" menu at the top.
3. Select the "Save As" option.
4. Choose the desired location on your computer to save the PDF file.
5. Set the file format as PDF and provide a suitable name for the file.
6. Click on the "Save" button.
The Gedcom file will then be saved as a PDF file at the specified location.