You don’t need to pay for expensive software like Adobe Acrobat to merge PDF files on a Mac. The built-in Preview app can do it effortlessly.
How to Combine PDFs
- Open the first PDF file in the Preview app.
- Click on View in the top menu bar and select Thumbnails.
- Drag and drop your second PDF file directly from Finder into the Thumbnails sidebar of the first PDF.
- Go to File > Export as PDF to save the combined document.