Lyonite
PDF guide

Fix sideways and upside-down PDF pages

Rotate one PDF page, several selected pages or a batch of documents. See the change before downloading a copy that stays the right way up.

A document can look fine until you reach the one scan that is sideways. Turning your screen—or rotating the view in a PDF reader—does not necessarily save a corrected document.

Rotate PDF saves the page orientation in a new copy. Turn the affected thumbnails, check them, and download. There is no separate Rotate-then-Download step.

How to do it

  1. Open the PDF. Choose one PDF for a page preview. You can also add PDFs from a ZIP. The original stays on your device.
  2. Turn the pages that need it. Use Left or Right on an individual page. The page controls also let you turn all pages, odd pages, even pages or a range. Check the thumbnail after the change; a page that arrived rotated needs a turn relative to how it currently looks.
  3. Download the corrected copy. Download PDF applies the rotations and saves a new file. Compression is off by default. Open Download settings only if you also need a smaller copy.

Open Rotate PDF

Lyonite Rotate PDF with a public sample document
Public sample files created for this guide. Check your own document’s preview before downloading.

One bad scan, or the same problem in every file?

For one document, the thumbnails make it easy to see which pages need a turn. For several documents with the same issue, Add PDFs opens a batch. The same page numbers and rotations apply to each file.

A PDF without the selected pages is reported individually; it does not stop other files. Back to editor returns to the draft you were editing. If every document needs a different fix, handle them individually rather than applying one batch rule.

Why it can still look wrong

Page rotation turns the whole page. It does not straighten a tilted scan, recognize which way text should face, or rotate one picture independently of the rest of the page.

If a scan is slightly crooked rather than exactly sideways, you need a deskew or image-editing workflow. Check the actual downloaded file instead of relying on a PDF reader’s temporary view rotation.

Keep text and quality in mind

Rotation itself does not turn the page into an image. Optional compression is a separate operation. A target size is a goal, not a guarantee; converting pages to images requires your explicit choice and makes their text no longer selectable.

Changing a signed PDF changes its bytes. Preserve the signed original if its signature matters. Page orientation is not evidence that a document was forged or edited at a particular time.

Before sharing

Check the finished PDF if you also need to inspect its author, dates or hidden information. See what can be hidden inside a PDF for the distinction between metadata and other file contents.

Keep reading

Technical references