How it works
Add a PDF and every page appears as a card. Drag a card by its handle to move it, use its arrow buttons, or use the keyboard: focus a handle, press Space to pick the page up, move it with the arrow keys, and press Space again to drop it.
Each card also has buttons to turn the page left or right and to remove it. “Undo all changes” puts every page back as it was.
What gets kept
Pages are copied exactly as they are, using the open-source pdf-lib library in a background worker: text stays selectable, and nothing is re-compressed or watermarked.
Bookmarks, links between pages and interactive form fields may not survive reordering, so check the result if you rely on them.
Your files are processed by your own browser, inside this tab. Nothing is uploaded, so there is no server copy to delete, and the page keeps working if you go offline after it loads.