Page one is fine. Page two is sideways. Page three is fine. The scanner clearly didn't care which way you fed the document.
What's actually going wrong
When pages are scanned in mixed orientations and OCR isn't auto-rotating, the PDF stores each page at its scanned orientation. The result is a document where half the pages need a head-tilt.
The fix is to permanently rotate the affected pages. Not a view setting — actually rewriting the page rotation in the file.
The quick fix
Drop the PDF into rotate PDF pages. Select the sideways pages. Choose rotation direction. Save. The new file has every page upright.
Flint shows page thumbnails so you can pick exactly which pages need rotation. No batch-rotate-everything mistakes.
If that didn't work
If a 'rotated' page is still showing sideways after saving, your viewer might be reading the file wrong. Open in a browser to verify — the Flint output uses standard rotation metadata that every modern viewer respects.
For pages where the content itself is rotated (page is portrait but text is sideways within it), rotation alone won't help. Convert to JPG, rotate the images, convert back to PDF.
Prevent it next time
Use scanners with auto-rotate on text detection. Feed paper consistently. And do a quick visual check of any scan before saving — fixing one page in software is easy, fixing twenty is tedious.
FAQ
Can I rotate individual pages?
Yes. Flint's tool lets you pick exactly which pages to rotate — leave the rest untouched.
Will rotation reduce quality?
No. Rotation changes metadata, not content. Zero quality impact.
Why are alternating pages sideways?
Common with duplex scanners that flip alternate pages. Enable auto-rotate on your scanner or fix in Flint.
Does rotation work on every PDF?
Yes — it's a standard PDF operation. Even password-protected and signed PDFs can be rotated (though signed PDFs may show the signature as invalidated after).
Rotate PDF pages in Flint and the file is upright everywhere.