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PDFStack

Organise PDF Pages

Every page is rendered as a thumbnail you can drag, select and act on. Changes are staged until you save, so nothing is written until you say so.

Local processingAccepts PDFUp to 100 MB

Drop your file here

PDF · up to 100 MB each · you can also paste from the clipboard

Nothing is processed until you press the button below.

How this tool works

  1. 1PDF.js renders each page to a small canvas for the thumbnail grid.
  2. 2Reordering, rotation and deletion edit a plain list of page instructions.
  3. 3On save, pdf-lib rebuilds the document from that list in one pass.

What it will not do

  • Thumbnail rendering for documents beyond a few hundred pages takes noticeable time on mobile.
  • Undo history is kept in memory only and is lost if you reload the page.

Common uses

  • Fixing a scan where every other page came out upside down.
  • Moving an appendix to the front of a bundle.

Where this runs

Organise PDF Pages runs entirely inside this page. Your file is read by the browser, processed in memory and handed back to your downloads folder. It is never sent to a server, because there is no server involved in this tool.

Read the full processing model →