Arrange PDFs

Being able to merge PDFs and manage pages within them used to require expensive software, but Preview can take care of these tasks pretty easily. To delete a page, the simplest way is to use the sidebar’s Contact Sheet view, select the page, press ∫ and then save the file.

To merge some pages from one PDF into another, open both and have their windows side by side and in Contact Sheet view. In one window, select the pages you want to move and then drag them into place in the other document’s window, then save that document. Alternatively, if you want to merge an entire PDF into another, open one, drag the second file from Finder into the Contact Sheet view, and then save.

This kind of editing can be very handy, whether it’s to quickly chop some pages from a presentation or assemble custom books, manuals or other material to read.