Rotate PDF pages
Fix sideways scans for good. Rotate every page or just the ones you pick, then save.
Done
Open the network tab. It stays empty.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
How it works
- Drop a PDF. Every page appears as a thumbnail.
- Rotate all pages at once, or click the arrows on individual pages.
- Save the rotated PDF.
In your browser, not on a server
pdf.js renders thumbnails so you can see each page. Rotating sets the page’s rotation attribute with pdf-lib, which is exactly what desktop PDF editors do, so the file is not re-rendered and loses no quality. The result is written in your tab.
Compared with upload-based tools: A sideways scan should take one click to fix, not an upload, a wait and a download page. The rotation here is instant because there is no round trip.
Verify it yourself. Load this page, turn off Wi-Fi or switch to airplane mode, and run the tool. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
Is the rotation permanent?
Yes. Unlike rotating in a viewer, which only changes the display, this writes the rotation into each page so every PDF reader shows it the right way up.
Does rotating reduce quality?
No. Rotation is a page attribute in PDF. The page content is not re-rendered or re-compressed.
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