How to merge PDF files on your phone, without uploading them
A client sends a contract across three emails. A scanner app saves every page as its own file. Somebody asks for "one PDF, please". The usual answer is a website that wants you to upload the lot, which is exactly what you cannot do with a payslip, an ID or a signed agreement.
You do not need the website. Merging PDF files is something a phone can do on its own.
Merge PDF files in Kyneto PDF
- Open Kyneto PDF and choose Merge.
- Add the PDFs you want to combine. You can pick several at once.
- Drag them into the order you want. The order in the list is the order in the finished document.
- Export. The merged PDF is saved on the device, ready to share from the app.
Nothing is uploaded at any point, so the whole thing works in a dead zone on the train or on a plane.
What about the other direction?
The opposite job comes up just as often: one big PDF, and you only need part of it.
- Split cuts the document into separate files: by page ranges, every N pages, or one file per page.
- Extract pages keeps only the pages you select and saves them as a single new document.
People use "split" for both, but they produce different things. If the client asked for pages 4 to 7 as one attachment, you want extract. If they asked for each chapter as its own file, you want split.
A few things worth knowing
- If a PDF is password-protected, open it with its password first. You can then remove the password so the copy you share opens without a prompt.
- A merged document inherits the page sizes of its sources, so mixing A4 and Letter pages is fine: they simply stay their original size.
- If the result is too large for a web form, compress it to a target size you type in, and check the estimate before the file is written.
Everything above runs on the device. There is no account to make and no server that sees the document.