Rotating fixes pages that were scanned or photographed sideways or upside down.
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Drop a PDF, choose 90, 180 or 270 degrees, and press Rotate PDF. The rotation is applied to every page and the fixed file downloads right away.
Yes — the chosen angle is applied to all pages at once, which is what most sideways scans need.
The downloaded file has the new orientation baked in, so it opens correctly everywhere.