Rotate PDF Pages Online
Rotate PDF pages by 90, 180 or 270 degrees. Rotate all pages at once or just the ones lying sideways. Runs locally in your browser, no quality loss.
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PDF · Max size: 100.0MB
What Is PDF Page Rotation?
Rotating PDF pages changes the page orientation by 90, 180 or 270 degrees without altering the content. Useful when a scan came in sideways, a contract arrived upside down, or landscape pages got mixed into a portrait document. Convertilo rotates PDFs locally in the browser via pdf-lib — only the page metadata is updated, text stays vector, and the file size doesn't grow.
About Rotating PDF
Rotate one, several or all PDF pages by 90, 180 or 270 degrees. Useful when a scanned document loaded sideways or landscape pages got mixed with portrait. Rotation is saved into the file, opens in any viewer, and does not change the page content — only its orientation.
How Rotation Works
- PDF parsing via pdf-lib without re-rendering pages
- Rotation through page.setRotation by 90°, 180° or 270°
- Per-page preview rendered with PDF.js so you see the result before applying
- Output saved with object streams and re-compressed to keep the file size lean
- Everything runs locally in your browser — the document never leaves your device
Technology Behind Our PDF Tools
Our PDF tools are built on two powerful JavaScript libraries that run entirely in your browser:
pdf-lib — A library for creating and modifying PDF documents. Used for merging, splitting, and page manipulation operations.
PDF.js — Mozilla's PDF rendering engine for parsing and displaying PDF content. Powers our PDF viewer and page export features.
Canvas API — Browser's built-in rendering API used for converting PDF pages to image formats (JPG, PNG, WebP) at any resolution.
All operations are performed locally — your documents are never uploaded to any server, ensuring complete confidentiality.
Benefits of Rotating PDF
Per page or all at once
Rotate a single page or the entire document in one click — "Rotate all left" and "right" buttons sit above the page list.
No quality loss
We rotate page metadata, not pixels. Text, signatures and stamps stay just as crisp as in the original.
Local processing
Your document never leaves your browser — rotation runs through pdf-lib on your device.
Rotate PDF FAQ
Will the rotation persist when opened in another app?
Yes. We write the rotation into the page metadata (the /Rotate key in the page dictionary). Acrobat, Foxit, Preview and any built-in viewer will open the document already rotated.
Can I rotate all pages at once?
Yes. Above the page list there are "Rotate all left" and "Rotate all right" buttons that apply rotation to every page simultaneously. No need to click each thumbnail.
Will rotation degrade text quality?
No. We rotate the page metadata, not the rendered image. Text and graphics stay vector, stamps and signatures stay sharp, and the file size barely changes.
What if a page is upside down?
Click the rotate button twice (90° + 90° = 180°) — the page will be right-side up. Same works the other way around.
Where is my PDF processed?
Entirely in your browser. We don't upload the file to any server — rotation runs through pdf-lib locally on your device.