Top 3 free PDF viewer for MAC
1.Adobe Reader for Macintosh
Adobe reader is the famous PDF viewer on Windows. It also has Mac version. Adobe Reader for Mac enables users easily view, print, and search Adobe Portable Document Format (PDF) files on Mac. Adobe reader for mac allows users:
The interface of Adobe Reader for Mac

2.Preview
Preview is Mac OS X's application for displaying images and Portable Document Format (PDF) documents. If the PDF editing requirements are not very complicated, I would like to show some cool features that we’re going to walk through today:
Combine Two PDF Files
It is very easy for combining two PDF files in preview. Users just need to open both the file side by side and drag pages from one document’s sidebar to the other’s. And users can change the order of the pages by dragging the pages in the sidebar. The second page below is dragged from other PDF by me:

Delete pages from a PDF file
Preview lets users delete pages from PDF directly. This feature is useful when users just want to keep the pages he is interested in. To delete a page, just open the PDF and highlight the page that want to delete, press the delete button and save the file.

Encrypt a PDF
Preview allows users encrypt the PDF they want to protect. Open the PDF file, click the “Save as” from “File” menu. Tick the checkbox “Encrypt”. Enter the password and rename the PDF file, click "Save".

3.Skim
Skim is a PDF viewer and note-taker for OS X. It is designed to help users read and annotate scientific papers in PDF, but is also great for viewing any PDF file. With Skim, users can:

The above PDF viewers for Mac are totally free and each of them has its cool features. Users can choose the one according to their needs.


