VUISO ROTATE PDF — how to use ============================= Turn pages that came in sideways, one at a time or all at once. Everything happens inside your browser. Nothing is uploaded, there is no account, and it works with the network switched off. This tool works on ONE FILE at a time. To combine several use Vuiso Merge PDF; to drop pages use Vuiso Split PDF. OPENING IT Double-click "Vuiso Rotate PDF.html". It opens in your browser like a normal page. There is nothing to install. Chrome or Edge is recommended; Firefox and Safari work too. THE SHORT VERSION 1. Open PDF (or drag the file onto the page area) 2. All Pages Right (or select just the sideways ones and press Right) 3. Save PDF TURNING PAGES Left / Right turns the selected pages a quarter at a time. Each page also has its own turn buttons when you hover over it. All Pages Left turns every page in the document. This is usually what a All Pages Right scan that arrived sideways actually needs. Reset All Turns undoes every turn made here and puts the document back as it arrived, without reopening the file. The thumbnail changes SHAPE as you turn it, so a portrait page turned a quarter genuinely becomes landscape in the grid. That is deliberate: you can see the document is right before you write it, instead of guessing. The small figure under a page - 90°, 180°, 270° - is how far it has been turned here. SELECTING PAGES Click select one page SHIFT + click select everything between it and the last one clicked CTRL + click add one page, or take one out of the selection CTRL + A select every page Esc select nothing THE ONE THING WORTH UNDERSTANDING Most scans already carry a rotation of their own, recorded inside the PDF. A quarter turn here is ADDED to whatever the page already had, rather than replacing it. That is why a page that arrived sideways ends up where you expect. If turns were substituted instead, a page already marked as rotated would jump somewhere arbitrary the first time you touched it. SAVING "Save PDF" shows a summary first: the source file, how many pages, and how many have been turned. Nothing is written until you press the button in that window. Your original file is never modified. Only the rotation flag changes in the new file - page content is copied across untouched. KEYBOARD SHORTCUTS Ctrl+O Open PDF Ctrl+A Select every page Esc Select nothing Ctrl+Left Turn the selection left Ctrl+Right Turn the selection right Ctrl+Z / Ctrl+Y Undo / Redo Ctrl+E Save PDF NOTES - Nothing is re-encoded. Only the rotation is changed, so nothing loses quality and a searchable PDF stays searchable. - Big documents open immediately. Thumbnails are drawn only as they scroll into view, and the cache holding them is capped, so a long scan does not end up sitting on hundreds of megabytes of pictures you are no longer looking at. - Memory, as a rough guide: allow about 300MB plus several times the size of the file. Under 50MB it is comfortable anywhere; a 100MB scan wants about 2GB free. If it ever runs out the browser closes the tab, and because your original is never written to, you lose the turns and nothing else. - Nothing is stored. No cookies, no local storage, no database - closing the tab loses the turns, which is why there is a warning before you do. PRIVACY The file contains a Content-Security-Policy that forbids network connections entirely. That is enforced by the browser, not promised by us: open DevTools, watch the Network tab, and it stays empty. You can also disconnect from the internet and the tool still works. Verify the copy you hold matches the one published: Windows Get-FileHash "Vuiso Rotate PDF.html" -Algorithm SHA256 macOS/Linux shasum -a 256 "Vuiso Rotate PDF.html" Compare the result with the SHA-256 printed on the download page and in the .sha256.txt file next to this one. LICENCE See LICENSES.txt, which must stay alongside the tool.