Everything in this section operates on a document you already have, at the level of pages rather than words. Combining files, pulling pages out, putting them back in a different order, stamping them, or turning images into a document you can send.
The work happens in the tab. A PDF is read, its pages are copied into a new document, and the result is written back to your device — which is why there is no file size cap imposed by an upload form, and why the practical limit is your own memory instead.
Two things this section deliberately does not do: it does not compress PDFs, because the technique available to a browser destroys selectable text, and it does not perform OCR. Both absences are explained rather than hidden.
What people use these for
Combining a covering letter, a CV and a reference into one attachment.
Cutting a long report into one file per chapter.
Pulling the signature pages out of a contract to send on.
Turning a stack of phone photographs of a document into a single PDF.
Stamping DRAFT or CONFIDENTIAL across every page before circulating something.
Rendering pages to PNG or JPEG for a slide deck.
Privacy in this section
PDF parsing and writing run in a Web Worker on your device, so document bytes are never transmitted. Encrypted files are reported rather than opened: this toolkit removes no access control.