See every page, turn the sideways ones, move them into the right order and drop the ones you do not need.
Every page appears as a thumbnail so you can see what you are doing.
Turn a page, move it earlier or later, or remove it. Turn every page at once if the whole scan came out sideways.
You get a new PDF in the order shown. Your original is untouched.
A scanner or phone records which way up it thinks the page is, and a PDF stores that as an instruction rather than by turning the page itself. When the guess is wrong, every reader shows it sideways.
Turning a page here changes that instruction, so it opens the right way up everywhere afterwards. Nothing is re-photographed and no quality is lost.
If pages came out in the wrong order, a double-sided document scanned in two passes is the usual culprit, move them here rather than rescanning.
No. The work happens inside this tab, on your own machine. Open your browser's network tab while you use the tool, there is no request carrying your file.
Practical limits depend on the tool, browser and available device memory. Large files can fail even when no explicit limit is shown. Keep an original and use a smaller job if this device cannot finish it.
No, and there is no daily limit either. There is nothing to sign up for.
Yes. Remove it here and it is simply not in the file you save.
No. The pages are carried across untouched, only the order and the which-way-up instruction change.
Every page appears as a thumbnail. You can turn a page a quarter at a time, move it earlier or later, or remove it, and there is a button to turn every page at once. So the same tool fixes a sideways scan, puts pages in the right order and drops a page that should not be there.
The result is built by copying the pages into a new document, with your turns added to each page. Nothing is redrawn, so text stays selectable and the pages keep their quality. If you turn a page too far, turn it again until it is right.
Rotating a page in a PDF viewer only changes how it is shown on your screen, and the next person who opens the file sees it sideways again. Here the turn is saved into the page, so it holds in every viewer and when the file is printed.
If you only turn pages, the document is edited where it stands, so bookmarks, form fields and everything else come through untouched. If you move or remove pages, a new file is built from the pages. Bookmarks are written again for the pages that remain, and a bookmark for a removed page is dropped with its sub-entries moved up. Form fields are not carried into that new file, so check a form before you send it. A password protected PDF cannot be opened for this until the password is removed. The saved file keeps the original name with fixed added.