A phone scan, office copier, or document feeder can produce a PDF in which every page is sideways. Even when the text is still present, readers must rotate the document manually. For a batch with the same problem, it is usually easier to correct the file once and share a new copy.
Check how many pages are affected
Open the PDF in a viewer and page through it. Decide whether every page has the same orientation problem. Our Rotate PDF tool applies a chosen turn to all pages. If one page is correct and another is sideways, a full-document rotation will not solve both issues at once.
Choose the rotation
Clockwise 90 degrees turns the top of a portrait page toward the right. A 180-degree turn flips an upside-down page. A 270-degree clockwise turn has the same visible effect as 90 degrees counterclockwise. When unsure, make a copy with one setting, inspect it, and try again with the original.
When only a few pages are wrong
For mixed orientations, you can extract affected pages, rotate those pages separately, and assemble the result with Merge PDF. This takes more steps but avoids rotating pages that were correct. Check the final order carefully after reassembly.
What rotation does not do
Rotation does not improve blurry scans, straighten skewed text inside a page, perform OCR, or make handwriting selectable. It changes the page orientation. If the original scan is unreadable because it was photographed at an angle, rescanning may produce a better result than rotating it.
Final checks
Review all pages on both desktop and mobile if the document will be viewed by a broad audience. Confirm that page edges and handwritten signatures remain legible, and keep your unmodified original until the recipient confirms the document opens correctly.
A note on file handling: Keep a backup of each source document, and inspect any downloaded result before sharing it.