It is quite common that, after you have generated a PDF file, you will want to manipulate the pages within the document without having to return to the original pre-PDF version. You may for example need to update, remove or add pages. Acrobat contains a number of menu commands and other techniques for working with pages. There are two ways of working with pages in Acrobat: firstly, you can use the commands in the Document menu and, secondly, you can use the Pages panel. The pages panel contains its own panel menu offering all of the page manipulation commands found in the Document menu as well as other useful commands and techniques.
Acrobat contains four main menu commands designed for manipulating pages within a PDF document: Insert, Extract, Replace and Delete. These commands are found both in the Document menu and in the Pages panel menu. The Document menu also contains one extra page manipulation command: Split Document.
The Insert command is a sub-menu offering two options: From File and From Clipboard. If you choose From File, you are presented with a browse dialog where you can navigate to the appropriate file and double-click its name. The Insert Pages dialog then appears, allowing you to specify where the incoming file will be inserted: either before or after a given page. If you choose the Clipboard option, the contents of the clipboard will be converted into a one page PDF document and inserted at the specified position.
The Extract command can be used to copy or move a single page (or a range of pages) into a separate new file. When the command is used, you can specify the page range to be extracted and whether or not the extracted pages should be deleted from the original document. Thus, the Extract command can be used to split an original document into several new and smaller documents. However, if the document has bookmarks, the Split document is more useful, since it will perform the operation in one step.
The Split Document dialog allows you to split a document mechanically (x number of pages in each file, for example). However, more usefully, it also offers an option called Top Level Bookmarks. This causes Acrobat to use each bookmark as the signal of where each of the new documents should start and end. You also have the option of placing the newly created PDF documents into a separate folder and using the bookmark names as the names of the new documents.
It’s not uncommon that one or more pages in a PDF document need to be updated. Rather than recreating the whole PDF, the Replace command can be used to choose an incoming PDF file and then specify which page or pages it should replace. Thus, Replace is equivalent to inserting a document and then deleting the pages which it is designed to replace.
Finally, we have the Delete command. No prizes for guessing that this allows you to choose a range of pages which will be permanently deleted from the document. This command cannot be undone; so it is probably a good idea to ensure that a backup version of the document exists before using it.