Rotate PDF pages — without uploading

Fix sideways or upside-down pages — one page at a time or the whole document at once. Runs entirely in your browser.

Scanning a landscape document or photographing a piece of paper often leaves you with PDF pages turned by 90° or 180°. In the mousePDF page overview you can rotate each page on its own — or select several pages together and put them right quickly in a single step.

For longer PDFs, it's often more efficient to rotate several pages at once. Simply select the desired pages in the page overview (Ctrl+click for individual selection or Shift+click for a range) and then click the rotate button. All selected pages are corrected in one step — useful for scanned books or documents with mixed orientations.

Rotation is lossless: it only changes the orientation, not the page content itself. Text, images, and formatting remain exactly as they were. If you notice something isn't right after rotating, you can undo the action with Ctrl+Z.

Rotating is the cleanest function in the whole editor: nothing is redrawn and nothing recalculated. A PDF records, for each page, the orientation it should be displayed in — and that record is what changes.

So none of the trade-offs other functions carry apply here: text stays searchable, fonts stay fonts, vector graphics stay sharp, and the file size stays practically the same. You could rotate the same page a hundred times without any loss of quality.

Rotation happens in 90-degree steps — page by page or for the whole document at once. In a file where only some sheets were scanned sideways, you rotate exactly those and leave the rest alone.

The most common cause is a sheet-feed scanner: put in a stack with one landscape sheet among them and it comes back lying on its side. Photographing documents with a phone is similar — the camera records the orientation, and not every program reads that record the same way.

The second cause is assembled documents: an appendix with a wide table arrives in landscape while the rest is portrait. After merging several PDFs, one page then sits differently from the others.

The only thing to watch is doing the rotation before you pass the file on: turning a sideways page in a viewer does not change the file — at the recipient's end it will be sideways again. Only exporting makes the rotation permanent.

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