PDF (Portable document format) by Adobe is a very great invention. If you create a PDF file, it can be read on every common computer and operating system – even on most mobile devices. They look and feel all the same.
But creating them with a Mac is no problem, because with OS X you have native support. You can do your very own PDF documents with almost every application by selecting File, Print, Save as PDF from the menu.
But what if you have a PDF and want to rearrange the pages? Just double click the appropriate PDF file and use drag and drop to resort the pages from the right quicklook pane.
Preview is that good, that you even can drag and drop pages between different PDF files!
You also can mark multiple pages to drag.

As a teacher, this is so helpful. I love Macs and their ease of use. I appreciate your pointing me in the right direction. I’d still be floundering otherwise.
Thank you so much for this information! Super helpful!!
H Markus, I meant using Preview in Tiger to merge PDF files does not work…hope that’s clearer.
Yes, that was clear for me. Thanks for your participation!
Your answer shows real inetlliecgne.
For Mac Users on Tiger, Preview does not work. For those looking to do a PDF merge with Automator, you cannot rearrange the PDF files. I designed Batch PDF Merger for this specific reason. Yes, my software. Simple, fast, and stable…give it a try.
Thanks,
Marlon
mergepdfmac.com
Really not working on Tiger? It’s just a long time ago :D Thanks for your share! But on Snow Leopard I am using this with Preview quite often.
I have a Mac and I can’t seem to find what application you are using. When I double click my PDF files, it opens Reader or Preview, neither of which has the “quicklook” pane shown in your screen shot. Please clarify this post. Thanks.
This is really “Preview” and no other special application installed afterwards. You also can activate the right sidebar via menu. View -> Sidebar -> Show Sidebar. Feel free to contact me again if you need assistance.
I am in charge of regurlarly updating the website of a church baptistenamsterdam.nl
They do already publish regularly a home magazine “Gemeente Nieuws” as a printed publication. For this they use publisher -a Windows programm. At the end of each month I receive this publication. As an Apple user I cannot handle this document and I am using a free pdf on-line programm from freepdfconvert.com, which works fine.
However for some reason my customer cannot change the sequence of the pages anymore from the sequence required for printing on paper (2 x A-5 pages on a single A-4 sheet). In this way the back page is on the same sheet as the front page; 2 on 15; 14 on 3; etc When folded this gives an A-5 size magazine with (in this case) 16 A-5 pages. When converted to pdf this publisher sequence is maintained and therefore useless for on line publication where the sequence frontpage; page 1; page 2; etc is required
Can anybody help to solve this problem. Somehow I have to cut each single A-4 page into 2 seperate A-5′s and than join the individual A-5 pages into a normal pdf document with 1; 2; 3; etc sequence
As an Apple user you could try to solve this issue with Automator. It is also able to handle PDF files.
Thank you for writing this! I’m a Windows person and new to mac. Came across your blog randomly on the net and switched to my mac to merge a 20MB PDF. Thanks so much! Easy!