How To Merge PDF Files in Preview (Snow Leopard)

Ever had the experience of trying to save multiple PDF files into one file but just won't go together?

It took me a while to figure it out and I was kicking myself when I found out.

Here's how to do it:

1) Simply select the files you want to put together and open with "Preview".

It should look something like this. If the sidebar doesn't show, click on the 'sidebar' icon shown below or hold Shift+⌘+D

2) Next click anywhere on the right hand side column and press ⌘+A (Select All). All the PDF thumbnails should now get highlighted. 

3) Drag the second icon (or any icon other than the first) ON TOP of the first icon. This will drag all icons onto the first icon.

Alternatively, you can also choose other icons instead of the first to drag onto. I only chose the icons mentioned in 'Step 3' as an example. Play around with it to get the feel and understanding of how it works.

4) You should now see that the first icon has changed to an icon with a 'binder' (see below).
Save this and your new file should now include all selected PDF files. Enjoy!

Note: For other file types such as JPEG, JPG, PNG, etc. Convert first to PDF and then use the drag and drop method.