What this does
It puts the pages of a PDF in the order you want and hands back the rearranged document. Every page shows up as a thumbnail, so you are moving the page you can see, not a number you hope is right; drag it to its place, or walk it there with the arrows, and a line under the grid confirms the new order in plain numbers, “New order: 3, 1-2, 4-8”, before anything is written.
Everything happens in your browser. The file is read off your machine, redrawn and rebuilt on your own processor, and handed back; nothing is uploaded, including the previews.
How to use it
- Drop your PDF onto the tool, or press “Choose a PDF”. The pages appear as numbered tiles at once and fill in as thumbnails a moment later.
- Drag pages into the order you want. Each tile shows two numbers: the badge is its new position, the caption is the page it has always been. “Reverse order” flips the whole document in one press, and “Original order” takes you back to the start without reloading the file.
- Press “Save this order”, then download. The file comes back as yourname-reordered.pdf, original untouched.
Thumbnails drawn on your device
Showing you the pages requires actually rendering them, and this page does it with Mozilla’s PDF renderer, the same engine Firefox opens PDFs with, running entirely in your browser. That matters because preview generation is where “we don’t upload your file” quietly fails on many sites: the document goes to a server to come back as pictures. Here the pictures are drawn next to the data they come from, on your machine.
The thumbnails are an aid, not a dependency. The odd page a renderer cannot draw stays a numbered tile, and a numbered tile moves exactly like a drawn one; the saved document is built from the real pages either way.
What survives, and what it costs
The new order is saved by rebuilding the document from its own pages, with each page copied as an object: fonts, images, sizes and selectable text come through exactly, and a page’s own rotation travels with it. The document’s identity, its title, author, subject and creation date, is carried onto the rebuilt file, because the result is still your document, just rearranged.
What the rebuild cannot carry is the catalog layer: bookmarks and fillable form fields do not survive, for the same structural reason as in the merger, the splitter and the page remover. If all you need is pages turned the right way up rather than moved, the page rotator edits in place and keeps the interactive layer intact.
When it matters
Scans are the usual culprit. A sheet-fed scanner loaded face down returns the whole stack in reverse, which is what “Reverse order” is for. Feeding a duplex document through a single-sided scanner twice gives you all the odd pages and then all the even ones, and the fix is exactly this tool and a few minutes of dragging. And any document assembled from more than one source, the cover sheet that arrived last, the appendix that belongs at the back, the two swapped pages nobody noticed until the print run, wants its order fixed without another trip through the software that made it.
One caution: reordering moves pages, it does not renumber them. A “7” printed at the foot of a page is ink, not metadata, and it says 7 wherever the page ends up. If the numbering has to match the new order, the document needs regenerating at the source.
Limitations
The interactive layer is not carried. As above: bookmarks and fillable fields do not survive the rebuild that saves the new order. The pages themselves, including links drawn on them, come through intact.
Protected files are refused. The same door policy as this site’s other PDF tools: remove the password first in software that has it, then reorder.
Very long documents are a lot of thumbnails. Rendering happens one page at a time and the tiles work before their pictures arrive, but a five-hundred-page scan will take a while to fully draw and holds all those previews in memory. The rebuild itself does not care about the count.