Rotate PDFの使い方
- 1
Choose the PDF
Pick the PDF with the sideways pages; files of up to 50 MB and 200 pages open for free. The thumbnails show every page the way a reader displays it now.
- 2
Turn the pages
Each page has its own rotate-left and rotate-right buttons. Select several to turn them together, or use Rotate every page for the whole file.
- 3
Check the angles
A small badge under a page shows its change, such as 90° or 180°. Ctrl+Z reverses the last turn.
- 4
Save the rotated PDF
Press Save rotated PDF and download name-rotated.pdf with every page facing the right way.
制限と Pro
Rotate pages of one PDF at a time, up to 50 MB and 200 pages per file.
Pro rotates documents of up to 5,000 pages and 4 GB. Pro を見る
Rotate PDF について
Rotate PDF fixes pages that open sideways or upside down and saves the correction into the file, so it looks right in every reader, on every phone and when printed. That is different from the rotate-view button in a PDF reader, which only turns the page on your screen until you close it.
A PDF page has a rotation setting of 0, 90, 180 or 270 degrees, and this tool changes exactly that setting. Because the page content itself isn't touched, the result is lossless: text stays sharp and searchable, scanned images keep every pixel and the file size barely moves. Pages already carrying a rotation are turned relative to how they look now, so what you see on the thumbnails is what you get.
Typical cases are a landscape table in a portrait report, phone scans saved the wrong way round, and double-sided scans where every second sheet comes out upside down; for those, press Even and then 180° in the selected-pages panel. The same screen can also delete or reorder pages if the scan needs more tidying. Rotation works in quarter turns only: a page that was scanned slightly crooked can't be straightened here, and the angle of individual pictures or text on a page can't be changed.
プライバシー
Rotation is applied by pdf-lib in a background worker of this browser tab, and the page previews are rendered by PDF.js on your device, so the document is never sent to a server. Encrypted files are decrypted locally with the password you type, using the qpdf WebAssembly engine that loads only for such files.