You can easily convert a screen capture into a PDF.
Do one of the following:(Windows) Press the Print Screen key. In
Acrobat, click Create PDF
and choose
From Clipboard Image.
(Mac OS) Choose File > Create PDF > From Screen Capture > [Screen, Window, or Selection]. The screen capture automatically converts to a PDF and opens.
You can insert the new PDF into an existing document or include it in an Adobe PDF package.