My page is turned 90 degrees the wrong way — which option fixes it?

Choose 270° clockwise, which is the same as 90° counter-clockwise.

Does rotating re-render or degrade the pages?

No. Only the rotation flag changes; the page content is untouched.

No. pdf-lib rewrites the file in your browser.

All mainstream viewers honor rotation flags, but a few very old ones ignore them — try a current reader.

PDF Tools100% Private · In-Browser

Turn scanned pages upright — rotate everything or just a range in 90° steps, with any existing page rotation respected.

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Rotate by 90°, 180° or 270° clockwise.
Apply to all pages or a custom range such as 1-3, 5.
Existing per-page rotation is preserved and the chosen angle is added on top.
Every run starts from your original file, so applying twice never double-rotates.
Result tiles show pages rotated, the angle applied and the output size.

Drop A PDF
The page count is read locally in a moment.
Pick Angle And Scope
Choose 90, 180 or 270 degrees, then All pages or a custom range.
Apply The Rotation
Your rotated PDF (<source-file>-rotated.pdf) is generated and downloads automatically.
Re-download If Needed
The result panel keeps a copy for a second download.

Scanners often emit sideways pages — a single all-pages 90° or 270° pass fixes them.
Mixed-orientation scans? Use a custom range to rotate only the offending pages.
Rotation is stored as a per-page flag, so viewers display it correctly without the content being redrawn.

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