Rotate an image: straighten a photo taken sideways

What this tool does

• Quarter turns, both ways, image by image or the whole batch at once.
• The rotation is written into the pixels, not into the EXIF orientation tag, so it holds in every program, including those that ignore the tag.
• Immediate preview: you see the result before saving.
• The original format and quality are kept.
• The rest of the EXIF metadata goes with it: not the camera, not the date, not the place.

What it does not do: Rotation goes through a re-encoding of the image, so a JPEG loses a little quality, where some programs can rotate it losslessly by transforming the stream. That gain would need a JPEG encoder written by hand, one more dependency. Only quarter turns are offered: straightening a scan by three degrees would require a crop and an interpolation, two more decisions taken blind.

Nothing is uploaded. Cut your network connection once this page has loaded: the tool keeps working. How to check it yourself.

The other tools

• Merge PDFs: Several files, one document, in the order you decide.
• Organize pages: Reorder, rotate, delete, duplicate: the whole plan.
• Extract pages: Pick pages, take them out into a document of their own.
• Delete pages: Remove pages while looking at them; they are not left under the file you get.