The sideways-scan problem
Phone scanning apps and office copiers regularly save pages rotated 90 degrees — readable on the device that made them, sideways for everyone else. The catch most people hit: rotating the view in a PDF reader usually doesn't change the file, so the attachment arrives sideways again for the next person. This tool writes the rotation into the document itself, so it opens the right way up everywhere, permanently.
Lossless by design
Rotation here is a metadata change: each page's stored orientation value is updated with pdf-lib, and no page is redrawn or recompressed. Quality is mathematically untouched — text stays selectable, scans keep every pixel, and the output file is essentially the same size as the input. Pick 90° right for the common scanner case, 180° for upside-down documents, or 90° left, and the whole document turns together; a file that mixes portrait and landscape pages keeps its relative orientations.
Batch rotation, processed locally
You can queue several PDFs at once — each is rotated on your own machine in a background thread, and a ZIP download collects the results. As with every tool on SafeFileConvert, no network request ever contains your file: the documents people most often need to straighten are scans of IDs, contracts, and paperwork, exactly the files that shouldn't tour a stranger's server to be turned 90 degrees. There is no account, no daily cap, and no watermark. Password-protected PDFs need unlocking first; the tool says so plainly.