A scanner that fed the stack backwards, an appendix that belongs at the front, two documents merged in the wrong order — drag the thumbnails until the document reads the way it should. The new order is written into the file itself, so every reader and every phone opens it that way.
This runs in your browser. The file is not uploaded, there is no account to create, and nothing is added to the document you download.
Also searched for: reorder pdf pages, rearrange pdf pages, change pdf page order, move pages in pdf. It is the same tool whichever way you found it.
Drag its thumbnail to the first position. The grid is the document — what you see is the order you will get, and nothing is saved until you say so.
Yes. Drag the pages into the right order in the grid; the new order is written into the saved file rather than remembered as a viewer setting, so it holds everywhere the document is opened.
No. Pages are carried across as they are, so a reordered document is exactly as good as the original — same text layer, same image quality, same fonts.
No. The file is opened, changed and written by this browser tab — it is never sent to a server, so there is no queue to wait in and nothing to delete afterwards. Once the page has loaded you can turn the network off and the tool still works.