To zoom in or search a PDF document, click “download.” You will see a blue box (upper right corner).  In a couple of seconds, it changes to a white box that says “Open.”  Click the down-arrow and it gives you the choice of opening the document in desktop. This will open the document in Acrobat Reader. Then you will see a tool bar at the top.  Change the zoom to the desired percentage.  Then you can press the “+” or “-” sign to adjust.  For the search feature, click the magnifying glass icon.  You can search any word or phrase in the entire document.