If you want to change the order of PDF pages, they may have been scanned in the wrong order. How to change the sequence of pages in PDF? To change the order of the pages in a PDF document, you can move from using the Thumbnails panel. In some cases, it becomes necessary to replace an entire page in a PDF file with another PDF page.
Moving a page is quite simple - just select a thumbnail with the corresponding number and drag it to a new location in the ribbon. This way, you can swap pages and arrange them in the order you want. If the permutation is not global, then you can select page thumbnails in the Page Thumbnails window in Acrobat and drag them in the same window to the desired place in the document.