See every page as a thumbnail, move pages into the right order, remove the ones that don't belong, and download the corrected PDF — all on your device.
Anyone who has fed a stack of paper into a scanner knows the result: page 3 before page 2, a blank sheet in the middle, someone else's cover page at the end. Rescanning means finding the paper again. Organizing the PDF is faster — every page appears as a thumbnail, so the out-of-place one is visible at a glance; move it with the arrows, delete the blank, download the corrected file.
Each thumbnail carries three controls: move earlier, move later, and remove. The number under each page shows its position in the output, and the header keeps count of what's been removed. A reset button undoes everything back to the original order — including restoring deleted pages — so experimenting is safe. When the arrangement looks right, one click rebuilds the document: pages are copied into the new order with pdf-lib, byte-for-byte, so nothing is re-rendered and quality is untouched.
Both halves of the job — drawing the thumbnails and rebuilding the file — run in your browser: pdf.js renders the previews on your machine, and the reordered document is assembled on your machine. The scans people reorganize are typically contracts, applications, and records, none of which should visit a server to have two pages swapped. There's no account, no watermark, and no fee. Documents up to 100 pages are supported (thumbnail rendering is the limit); longer files are best split into parts first with the Split PDF tool, organized, and merged back.
No. The thumbnails are rendered in your browser and the rebuilt PDF is assembled there too — the document never touches a server.
No. Pages are copied into the new order without re-rendering, so text stays selectable and scans keep their full resolution.
Yes — the reset button restores the original document order, including anything you removed, until you load a different file.
Yes, 100 pages — rendering thumbnails for more than that risks running mobile browsers out of memory. For longer documents, split first, organize the parts, then merge.
Not on this screen — rotation lives in the Rotate PDF tool. Split out the odd page, rotate it, and merge it back; all three tools run locally.