How To save a WebPage as a PDF File

On Desktop-->

1. Open the page in your browser you'd like to save 
2. On the top left-hand corner, click on File > Print, or you can also press Ctrl + P (Windows) or Cmd + P (Mac)
3. Under the 'Destination' section, click on Change... > Save as PDF.
4. Click the 'Save' button and select the name and location for your PDF.

On Android -->

1. Open the Web page you need to save it as a PDF.
2. Tap the three vertical dots icon on the top-right.
3. Tap Print and tap Select printer.
4. Tap Save as PDF.
5. Tap the Save icon.
6. Now you can select the place where you want to save the file and tap Save.