Rotate & Reorder PDF Pages

How to use it

1. Drop a PDF onto the box above, or click Choose a file. The page list appears immediately — no upload wait, because there is no upload.
2. Use ↺ and ↻ on any row to turn that page left or right in 90° steps, or ↺ All left / ↻ All right to turn the whole document at once.
3. Drag a row to move it, or use ↑ and ↓. Remove a page with ✕.
4. Click Save changes, then download the result.

The header line tracks what you have changed — how many pages were removed, how many rotated, and whether the order differs from the original.

How it works

A PDF page carries its rotation as a number in its dictionary, not as pixels. A page described as /Rotate 90 holds exactly the same content stream as an upright one; the reader is simply told to turn it a quarter turn before displaying. Fixing a sideways scan therefore means changing one number, not redrawing anything — which is why it is instant and why nothing is degraded.

Page order works the same way. The document has a page tree listing its pages in sequence; reordering means writing a new tree that references the same page objects in a different order. Deleting a page means leaving it out of that list.

This tool builds a new document and copies the page objects you kept into it, in your chosen order, setting each one’s rotation to its original value plus whatever you added. The copy is done in a single operation so that resources shared between pages — an embedded font, a logo used on every page — are stored once in the output rather than duplicated per page.

Reading the file only parses its page tree, not the page contents, which is why a 400-page document lists as quickly as a 2-page one.

Tips

• Scans come out sideways when the scanner’s paper orientation does not match the page setup. If every page is wrong in the same direction, use All left or All right once rather than clicking through each page.
• Pages alternating between upright and upside down is the signature of a double-sided scan fed the wrong way. Rotate the affected pages 180°.
• Deleting a blank separator page from a scan is often all that stands between a document and looking professional — the page list shows dimensions, and an unexpected size is usually a stray inserted page.
• Check the result in the PDF Viewer before sending it on. Orientation is one of those things that is obvious on screen and invisible in a page list.