Put every page in its place.

Scanning a stack from both sides can leave the pages technically complete and practically unreadable. Correcting orientation and correcting order are separate tasks; do them in a sequence you can check.

Map the current document

Open the thumbnail panel in your viewer. Write down the PDF position of each page and its intended position. Count blank backs and cover sheets, even when they have no printed page number.

If a page is missing, reordering cannot recover it. Find the missing source before making a final copy.

Fix orientation

Use Rotate PDF with the required angle. Check whether the settings apply to the whole document. If only part of the source needs rotation, isolate that section first rather than rotating correctly oriented pages by accident.

Download and inspect the intermediate file. An upside-down page needs 180 degrees; a sideways page usually needs 90 or 270.

Set the reading order

Open Organize PDF. Enter PDF positions in the desired sequence. For a three-page file where the cover is last, entering 3,1,2 brings it to the front.

Account for every page you intend to keep. A selection can omit pages; a repeated number can duplicate a page. Compare the resulting page count with your plan before you share the file.

Clean up only after the order is right

Remove unwanted blank pages with Remove Pages. Add page numbers only once the sequence is final, otherwise references can become misleading.

Use clear intermediate names such as “upright” and “ordered.” Keep the source until a complete page-by-page review confirms that the final copy has no gaps or duplicates.