In short
This tool creates a new PDF from the pages you choose: pulling a chapter out of a long report, isolating the signed page of a contract, passing on only a few pages of a statement. Select the pages to keep by clicking the thumbnails (Shift + click for a range) or typing their numbers, then get a single PDF, in document order, or one PDF per page, bundled in a ZIP archive. The pages are copied without recompression, with the document's title and author. It is the reverse of “Delete pages”: you choose what to keep. To split the whole document into several parts, “Split a PDF” is a better fit. The original file is not changed and everything happens in your browser.