Phone scans and fax-era documents arrive sideways constantly. Viewers let you rotate the view, but that isn't saved — the next person to open it sees it sideways again.
This writes the rotation into the file itself, so it stays fixed everywhere. Rotate a single page, a selection, or the whole document, in ninety-degree steps in either direction.
Rotation in a PDF is a property of the page rather than something baked into the content, which is why it's a lossless operation: nothing is re-drawn, no quality is lost, the text stays selectable and the file doesn't grow by a single byte. That also means it's instant even on a several-hundred-page document, because there's nothing to re-encode.
One detail most tools get wrong: if you've already added a signature or a stamp to a page and then rotate it, the addition should rotate with the content it was placed on rather than staying stuck to the corner of the screen. It does here.
Type into real form fields, or anywhere on a flat form.
Draw, type, or upload a signature and place it on any page.
Number the pages, with control over position and format.
Add DRAFT, CONFIDENTIAL or a logo across the pages.
Cut away white margins or crop pages down visually.
Combine files into one PDF and set the order before you merge.
Break a document into separate files by range or interval.
Drag pages into a new order, rotate or drop the ones you don't need.
Pick pages to drop, visually or by range.
Keep only the pages you want as a separate file.
Combine JPG or PNG images into one PDF, with page size control.
Render pages to images at the resolution you choose.
Shrink a PDF with a side-by-side quality preview and a size target.
Add a searchable text layer to a scanned document.
Extract text as plain text or Markdown, in reading order.