What is a one-sentence summary of the following article?
You will need a PDF reader to open the PDF files once it has been downloaded. You can download Adobe Reader for free from the Adobe website.  Alternatively, you can open PDF files in most browsers, though they may lack some features. Go to https://get.adobe.com/reader/ and click Install now to download Adobe Acrobat Reader. There is also a variety of third-party PDF readers, such as Foxit Reader, Nitro PDF Reader, and PDF XChange Editor that you can download for free. There are lots of websites that have information in PDF format. These websites usually display the PDF within the web browser. Make sure that the PDF file opens full screen as part of its own page.  Not as part of another page. This displays a pop-up menu where you right-click on the document.  Alternatively, some web browsers may have an icon that resembles a floppy disk (Microsoft Edge), a page with an arrow inside (Firefox) or a line with an arrow pointing down over it (Google Chrome).  This is the "Save" icon. If you are using Safari on Mac, click File in the menu bar at the top of the screen. It's in the pop-up menu that appears when you right-click inside the PDF.  This opens a file browser you can use to save and select files. Some websites will have links to downloadable PDF files much like any other downloadable file. To download these files, click on the link, then select where you want to download the file and click Save. Use the file browser to navigate to where you want to save the PDF.  You can click the Quick Access folders in the left-side bar of the file browser to select a location. If you want to change the file name of the PDF, type a new name bar next to "File Name:". It's in the lower-right corner of the File browser window.  This will save the PDF file to your hard drive in the location you have specified.

Summary:
Download a free PDF reader. Find the PDF that you want to download. Right-click inside the PDF. Click Save As or Save Page As. Choose the location where you want to save the file. Type a name for the PDF (optional). Click Save.