How do I merge PDF files on a Mac?
To merge PDF files on a Mac with the built-in Preview app, open the first PDF, show the thumbnails sidebar, then drag the other PDFs into it where you want them. Save, and you have one file.
That works well for two or three files. With more, dragging pages around in the sidebar gets fiddly.
The quicker way for a pile of PDFs is the merger below. Drop them all in, drag them into order and download one PDF. It works the same on Mac, Windows and phones.
Drag PDFs here
Add as many as you like. Drag to change the order.