If you want to combine multiple PDF files into one and you have a Mac, you can easily combine multiple PDFs for free. Whether you use software that comes with your Mac, websites, or paid options, here's what you need to know about combining PDF files on any version of macOS.
How to Combine Multiple PDFs into One File on Mac
The Preview program that comes pre-installed on every Mac offers a super-simple way to combine PDF files for free. Follow these steps to merge PDFs:
Open the PDF files you want to combine using Preview.
Make sure the page thumbnails are visible on both PDFs by clicking the sidebar button and then clicking Thumbnails.