With Mountain Lion (OSX 10.8) Apple have made it even simpler to join two pdf files together – you just need to drag any pdf file into the thumbnail window of an existing pdf file and the two will be merged together!
Note: this is different for different versions of OS X.
For older versions of OS X (10.6-10.7) click here.
For OS X 10.9 Mavericks click here.
This is a simple 4 click process… (1) Open the first pdf file, (2) Open the thumbnails draw (3) Drag in the second pdf file and (4) Save the new pdf. Here are some pictures to help you do it!
Step 1 – Double click the first pdf file to open it.
Step 2 – Switch to thumbnail view. You can also do this from the top menubar – in the View menu click Thumbnail.
Step 3 – Drag the second pdf file anywhere into the thumbnail window. This copies the whole pdf file in.
Step 4 – Save. It will overwrite the original pdf.
- Some people are reporting this is not working. (See the comments below). I have no idea why except that maybe you have a different version of the Preview app. Try the instructions in this post even though you don’t have Leopard and it will work!
- To make a new pdf preserving the original one use ‘Duplicate’ then ‘Save’.
- To copy only one page, open the second pdf page in thumbnail view and drag just one page across.
- This does not work with protected pdf files. (Protected pdf files are not common.) If a pdf file has been locked by the author you cannot change it without a password.
- It’s a little more complicated on older versions of OSX (eg Leopard, Snow Leopard and Lion) because the exact location that you drop the new pdf makes a difference – see this post for how to merge pdf files in Leopard, Snow Leopard or Lion (10.5,10.6 and 10.7)