Pages 3 and 5 are swapped. Or you scanned the document upside-down and the order is reversed. Or someone merged pages in the wrong sequence.
What's actually going wrong
PDF page order is metadata. Scanners feed pages and number them in feed order — if the stack was upside down, order is reversed. Merge operations append in selection order — easy to get wrong. Some workflows insert pages at wrong positions.
None of this is a content problem. The pages are fine; the sequence isn't.
The quick fix
Drop the PDF into reorder PDF. Flint shows thumbnails. Drag pages to their correct positions. Save. The new file has pages in the right order.
The original file isn't modified — you get a fresh download with the correct sequence.
If that didn't work
For PDFs with many out-of-order pages where dragging one by one is slow, split the PDF into individual pages first. Rename the files in the desired order. Merge them back — Flint preserves the order you specify.
For reversed scans, scanning software usually offers 'reverse page order' as a one-click option. Use it next time. For existing reversed PDFs, Flint's reorder handles it fast.
Prevent it next time
Check scanner orientation before scanning a stack. Number pages explicitly when scanning batches. And for merges, double-check input file order before clicking merge.
FAQ
Can I reverse the entire page order at once?
Yes — Flint's reorder tool lets you reverse all pages with one action, useful for upside-down scans.
Will reordering affect content quality?
No. Reordering changes the page sequence metadata only. Content is unchanged.
Can I duplicate a page during reordering?
Indirectly — split, then merge with the duplicated page included twice. Direct duplication isn't a standard reorder operation but the round trip handles it.
Why does my reordered PDF still show pages wrong?
Make sure you downloaded the new file, not the original. Flint produces a new file; your download folder may have both. Check timestamps.
Order fixes in seconds. Reorder PDF pages in Flint, drag, save.