Normalize PDF Orientation

A document that mixes portrait and landscape by accident — usually because a scanner guessed wrong on some pages — prints unpredictably and looks careless. This turns the odd ones so everything agrees. Where the mixture is deliberate, such as a report containing a wide chart, leave it alone.

Will turned pages be readable?

Yes. The content is rotated with the page, so it reads normally.

What if my mixture is intentional?

Then do not use this. It is for fixing accidents.

How do I know which pages are wrong?

Inspect the document first; it reports mixed orientation.