I’ve opened up a 75-page PDF in Preview, and I need to extract three pages to email to somebody. I’ve been looking for some way to export only these three pages out of the PDF or to split the PDF, but I can’t figure out how to do it.
The secret to extracting pages out of a PDF file with Preview is that you actually need to re-create the PDF file with only the pages you want. With the PDF open in Preview, display the sidebar if it’s not already displayed, then choose the Thumbnails option at the bottom of the sidebar (second button from the left).
Copy the thumbnails in Preview's sidebar, then choose File > New From Clipboard to paste them into a new Preview document.
In the sidebar, select the thumbnails for your desired pages (Shift-click for consecutive pages or Command-click if they’re not next to each other), press Command-C to copy those pages, then press Command-N or go to File > New From Clipboard to paste those pages into a new Preview document. Save that new document in the normal fashion, and it’s ready for emailing.
If you’d like to accomplish this via software, plus get more PDF creation and editing tools, check out PDFClerk (35 euros, sintraworks.com) or PDFpen ($50, smileonmymac.com). These products rival Adobe’s Acrobat 9 Pro ($449, adobe.com) and Acrobat 9 Standard ($299), but at a fraction of the price.