Split the pages of a PDF in two

What this tool does

• The cut moves by the percent: a spine is never exactly in the middle.
• It shows on every thumbnail, including the pages you have rotated.
• Each half can keep a few millimetres of the other, so no letter is lost in the gutter.
• A book that reads right to left comes out in its reading order.
• The cut follows the longer side, or the one you choose.

What it does not do: The cut is the same on every page: a scan whose spine moves from one image to the next has to be split in several passes. The pages are redrawn: clickable links, bookmarks, form fields and accessibility tags do not survive. And what falls outside the frame stays in the file without being shown, as with cropping: an editor can bring it back.

Nothing is uploaded. Cut your network connection once this page has loaded: the tool keeps working. How to check it yourself.

The other tools

• Merge PDFs: Several files, one document, in the order you decide.
• Organize pages: Reorder, rotate, delete, duplicate: the whole plan.
• Extract pages: Pick pages, take them out into a document of their own.
• Delete pages: Remove pages while looking at them; they are not left under the file you get.