Edit a PDF - Microsoft Support

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To edit a PDF, open it in Word. This works best with PDFs that are mostly text. PDFs of book chapters or something that looks like a manuscript from a copier won't be formatted well in Word.

Go to File > Open.
Find the PDF and open it (you might have to select Browse and find the PDF in a folder).
Word tells you that it's going to make a copy of the PDF and convert its contents into a format that Word can display. The original PDF won't be changed at all. Select OK.
After your edits, you save it as a Word doc or a PDF. In the Save menu, choose the document type in the Save as dropdown menu and select OK.

Note: The converted document might not have a perfect page-to-page correspondence with the original. For example, lines and pages may break at different locations.

Convert or save to PDF

Go to Export > Create PDF/XPS Document > Create PDF/XPS.
Select where you want to save your document, like OneDrive.
Check Options... to change properties.
Select Publish.