When several PDFs arrive on your phone, you do not need a dedicated app to combine them. Open PDF Tool in Safari or Chrome, merge them on the spot, and save the result — completely free, with the files never leaving your phone.

Four simple steps

  1. 1

    Open the Merge PDFs tool in Safari or Chrome.

  2. 2

    Tap Choose files and select two or more PDFs.

  3. 3

    Drag the preview cards into reading order.

  4. 4

    Tap Merge PDF and save the result to Files or your Downloads folder.

Tips for the best result

  • On iPhone, pick PDFs from the Files app; on Android, from your Downloads folder.
  • Save PDFs received by mail or chat to your device first, then select them.
  • For many large PDFs, close other apps first for the most stable run.

Compared with merger apps

Free tiers of PDF merger apps often cap usage or add watermarks, and many push subscriptions. Running in the browser, PDF Tool needs no install, costs nothing, and has no limits.

It also consumes no storage, and there is nothing to uninstall later.

Choosing a destination on iPhone

From the share sheet, Save to Files stores the merged PDF in the Files app, or share it straight into Mail or a messaging app. Saving to iCloud Drive makes the same file available on your computer.

Tips for Android

In Chrome the merged PDF lands in Downloads — open it from the completion notification or the Files app. Merged in the wrong order? Rearrange and merge again; it is free every time.

PDFs from mail or chat are easiest to select after saving them to the device first — sorted by newest, they appear at the top of the picker.

Frequently asked questions

Do I need to install an app?

No. The merge runs entirely in the browser.

Where does the merged PDF go on iPhone?

Use Save to Files in the share sheet to store it anywhere in the Files app.

Does it use much mobile data?

Only the page load uses data. The PDFs themselves are never uploaded, so their size costs nothing.

Is it free?

Yes — no charges and no usage limits.

Try it now for free

No account and no limits. Selected files are processed only in your browser.

Combine multiple PDFs in your chosen order