Final answer:
To merge PDF files on a Mac, use the Preview app to open the first PDF, show thumbnails, and drag and drop other PDFs into the sidebar, then save the combined file.
Step-by-step explanation:
The correct answer to the question on how to merge PDF files on a Mac involves using the Preview application, which comes pre-installed on all Macs. Here's how you can do it:
- Open the first PDF in Preview by double-clicking on the file.
- Go to the 'View' menu and choose 'Thumbnails' to display page thumbnails in the sidebar.
- Drag and drop the second PDF file onto the sidebar where the thumbnails are displayed. Place it at the location in the document where you want the files to merge.
- Once your files are arranged in the correct order, go to the 'File' menu.
- Select 'Export as PDF...' if you wish to save a new copy, or 'Save' to overwrite the existing document.
This method requires no additional software and is typically sufficient for basic PDF merging tasks on a Mac. For more complex needs, third-party PDF editors or online services may offer additional functionality.