The rot90 command.
Rotate 90° clockwise — real pixels, not a display flag.
photo.jpgphoto.rot90.jpg
Works on: Images and PDF · The command disappears once the job is done · Original backed up first
Sideways scans and phone photos that only *look* rotated in Preview are a classic trap — many tools just set an orientation flag that other software ignores. rot90 rotates the actual pixels 90° clockwise, so the file is upright everywhere, and image metadata is preserved.
On a PDF it rotates every page via the PDF's own page-rotation — text stays vector and selectable. Companions: rot180 for upside-down files, rot270 for counterclockwise.
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Questions? Answers.
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