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How to split a PDF into separate files on iPhone and iPad

Split PDF in Unlock my PDF cuts one PDF into several files, either every few pages or by the page ranges you type. You see a preview of the files before splitting, and everything happens on your device.

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Free · once a day iPhone and iPad · iOS 16+ About 20 seconds

Step by step

  1. Step 1

    Open Split PDF and choose the file

    In the Tools tab, tap Split PDF, then Tap to choose, and pick the PDF from Files.

  2. Step 2

    Choose how to split

    Every few pages makes files of the same length: choose 1 to get one file per page. Custom groups makes one file for each range you type, such as 1-3, 4-6, 7.

  3. Step 3

    Check the preview

    At the bottom you see the files that will be created and their pages. Tap a file to see its pages.

  4. Step 4

    Slide to split and save the files

    Drag Slide to split. Then share all the new files together or save them in Files. The original PDF stays as it is.

Good to know

Keep only some pages

If you need just a few pages and not the rest, Extract pages is quicker: it makes one new PDF with only the pages you choose.

Split in two halves

Use Custom groups with two ranges, for example 1-10, 11-20 for a 20-page PDF.

Split a protected PDF

The app asks for the password you know; the new files stay protected with the same password. With Premium you can remove the password from the results.

Free once a day after a short video. Unlimited with Premium. The PDF is processed on your device. Unlock my PDF has no servers that receive your files.

Questions

Can I split a PDF into single pages?

Yes: choose Every few pages and set it to 1. You get one PDF for each page.

Can I give the files names?

They take the name of the original PDF followed by _part1, _part2 and so on. You can rename them in Files.

Is it free?

Yes, once a day after a short video. Premium makes it unlimited and removes the ads.

Are my files uploaded?

No. The PDF is split on your iPhone or iPad.

How to merge PDF files on iPhone and iPad Merge PDF in Unlock my PDF joins two or more PDFs into a single file: add them, drag them into order and slide. How to compress a PDF on iPhone and iPad Compress PDF in Unlock my PDF shrinks a PDF that's too big for an email or an upload form. How to redact a PDF on iPhone and iPad Redact in Unlock my PDF hides sensitive text for good: you search for it or draw boxes over it, and the app deletes what's underneath instead of just covering it.

Do it now on your iPhone or iPad

Unlock my PDF is free to download. Your PDFs are processed on your device: no uploads, no account.

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Updated October 2026 · app 2.0