Pages end up in the wrong order more often than they should — a document fed into a scanner back to front, an appendix that belongs at the end, or a two-sided scan that interleaved the sheets. This tool rearranges them without re-scanning anything.
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Result
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What the Reorder PDF Pages does
You see every page as a numbered thumbnail, then type the order you want. Entering 3,1,2 puts page three first, then page one, then page two.
Anything you leave out is not discarded. Unlisted pages keep their relative order and are appended at the end, so a typo costs you a reshuffle rather than a lost page. That is a deliberate choice: silently dropping pages would be the worse failure.
How to use this tool
- Select your PDF and wait for the numbered thumbnails.
- Work out the order you want, reading the page numbers under each thumbnail.
- Type the new order, comma-separated. Ranges are allowed —
5-8,1-4moves the second half in front of the first. - Press Apply new order and download the rearranged file.
How reordering works
1. Your list is parsed into page indices, duplicates removed.
2. Any page not mentioned is appended, in its original relative order.
3. Pages are copied into a new document in that final sequence.
Example on a 6-page document:
You enter: 4,5,6
Unlisted: 1,2,3
Final: 4,5,6,1,2,3
Nothing is dropped — the page count out always equals the count in.
Worked example
Example: a reversed scan
| Scanned order | 8,7,6,5,4,3,2,1 |
| Order entered | 8,7,6,5,4,3,2,1 |
| Result | pages read 1 to 8 correctly |
A document fed into the scanner upside down produces exactly this. Typing the numbers backwards is quicker than re-scanning.
What your result means
The page count out always equals the count in. If the result mentions unlisted pages kept at the end, part of your list was missing — check whether that was intentional.
Page numbers refer to current positions, as shown under the thumbnails, not to any numbering printed on the pages.
To reorder and remove at once, use the extract tool first and reorder the result.
Important considerations
- Duplicates in your list are ignored — a page can only appear once in the output. To repeat a page, extract it and merge it back in.
- Ranges make large moves easy: on a 100-page document,
51-100,1-50swaps the halves. - Numbering printed on the pages is unaffected. A reordered document may show page numbers out of sequence, which matters for formal submissions.
- For interleaved two-sided scans — all fronts then all backs — you need an alternating list such as
1,7,2,8,3,9. Work it out from the thumbnails. - Reordering invalidates any digital signature on the document, as any modification does.
Limitations of this tool
- Everything runs in your device's memory, so very large documents — several hundred high-resolution scanned pages — can be slow or exhaust available memory. The tool reports a clear error rather than crashing silently.
- Password-protected PDFs cannot be opened. Remove the password in a PDF reader first and save an unprotected copy.
- Damaged or partially downloaded PDFs cannot be parsed. If a file fails, try re-downloading it from the original source.
- Reordering is by typed list rather than drag and drop. On a document with more than about fifty pages, work out the sequence before you start.
- Only the first 200 pages are shown as thumbnails.
Frequently asked questions
How do I reverse the page order of a PDF?
Type the page numbers in descending order — for an 8-page document,
8,7,6,5,4,3,2,1. There is no single reverse button because partial reversals are more common than full ones.What happens to pages I do not list?
They keep their relative order and are added at the end, so nothing is lost. The result tells you how many pages this applied to.
Can I move a page by dragging it?
Not currently — the order is entered as a list. Thumbnails are numbered so you can work out the sequence, and ranges make large moves quick.
Does reordering change the printed page numbers?
No. Numbers printed on the pages are part of the page content and stay as they are. Use the page numbering tool to add fresh numbers after reordering.