I do it thru the PRINT mode on my computer--ms.
When I find something I want to keep I go to the Print option.
You have to push the control + P and it will take you to the print menu options
I have it set to Microsoft Print to PDF (under the printer option)
It also has a save to pdf. You can use either option.
Once you set whichever option you want click the Print or Save button and you computer does the rest.
I use Print because I print my items at the senior center and it comes out better--in my opinion.