Pdf PDF output.pdf cat 2 output > out.pdf How To Extract All Pages from PDF — Ask Ubuntu It is quite hard to extract all pages, especially when the PDF is large. It is quite similar to extracting individual pages in word processing software, you have to go through the entire PDF file first, then it's just a matter of selecting the specific pages you want. And then the files get split by the tools we used to split PDF files. It takes a lot of time to sort through all of those PDF files on your hard drive. There are many tools available to do that.