Scanners produce pages in the wrong order, double-sided documents come out interleaved, and appendices always seem to end up in the middle. Organizing a PDF should be as direct as dragging a thumbnail.
Every page is shown as a thumbnail you can drag, rotate, select in bulk or delete — and every change is undoable, which is unexpectedly rare. Most browser PDF tools make you reload the file to undo a mistake, which is a strange thing to accept from software running on your own computer.
Because the document is held in memory rather than posted to a server for each operation, rearranging forty pages costs nothing and happens instantly. Nothing is written until you download, so you can experiment with an ordering, undo the whole thing, and try again without ever committing to a version of the file.
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.
Turn sideways or upside-down pages the right way up.
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.