There is a simple trick to extract individual pages from a pdf file. It is to use Google Chrome browser. It is actually very easy.
- Open your pdf file with Google Chrome.
- Print your pdf and choose your Destination as Save as PDF.
- Enter page numbers or page range that you want in the Pages input field.
You would have not thought an Internet Browser allows you to do this. Don't you? Besides, Google Chrome is installed in most computer.