There are several ways to save one page of a PDF. Here are the steps for one of the methods:

1. Open the PDF file in your PDF editor.
2. Click File > Print.
3. Choose the page you want to save from the PDF file.
4. Click PDF > Save As PDF.
5. Choose where to save the file.
6. Click Save.

This method works with Microsoft Word, Google Chrome, and many free PDF editors available online. You can also use Adobe Acrobat if you have it installed.