Scanned documents are the most common source of orientation problems: a stack of pages fed through a sheet-feed scanner in the wrong direction, a single page placed upside down, or a document where landscape and portrait pages got mixed up. PurePDF's rotate tool handles all of these cases.
Rotating individual pages vs all pages
PurePDF provides both per-page and bulk rotation controls. Each page thumbnail has individual ↺ and ↻ buttons for 90° left and right rotation. Clicking multiple times achieves 180° or 270° rotation. For bulk rotation, the toolbar offers "All ↺" and "All ↻" buttons that apply a 90° rotation to the entire document simultaneously — useful when a multi-page scan came through entirely sideways.
Why scanned documents get the orientation wrong
Flatbed scanners have a fixed orientation: the document sits flat and the sensor sweeps across it in a fixed direction. If you place a portrait document landscape on the glass, or feed a stack upside-down into an ADF, the resulting PDF will have incorrect page orientations. Mobile document scanner apps are also prone to this if you hold your phone sideways while photographing a document.
What happens to quality during rotation
PurePDF rotates pages by re-rendering them at the new orientation and encoding the result as a JPEG image. The visual quality is preserved at the same level as other PurePDF tools. One consequence of this approach is that selectable text in the original PDF becomes part of the image layer in the rotated output. For documents where text searchability must be maintained, a desktop PDF editor with native rotation support is needed.
After rotation
Once you download the rotated PDF, the orientation is permanently applied. If you realise a page was rotated the wrong way, simply re-upload and correct it. The process is fast enough that re-rotating a single incorrect page takes less than a minute from upload to download.
