How to Merge PDFs on iPhone (No Desktop Needed)

Merging PDFs used to mean firing up a desktop app, uploading files to a website, or emailing documents to yourself. On iPhone, most people don't even try. Here's how to combine PDF files directly on your phone — in about 10 seconds.

When would you merge PDFs?

Common use cases include combining a scanned contract with a signed addendum, sending multiple invoices as one file, merging bank statements for a loan application, or combining multiple scanned pages that were saved as separate files.

Method 1: Files app shortcut (limited)

iOS has a hidden way to merge PDFs built into the Files app:

1. Open Files and navigate to where your PDFs are stored
2. Long-press one PDF, then tap Select
3. Select all the PDFs you want to merge
4. Tap the … button in the toolbar
5. Tap Create PDF

This works, but it gives you no control over page order and no compression. The merged file is often larger than the originals combined.

Method 2: Using Scanniq (recommended)

Scanniq's Merge PDFs tool lets you select files, drag to reorder pages, and get a compressed, clean output in seconds.

1. Open Scanniq and tap Tools
2. Select Merge PDFs
3. Tap Add Files and pick your PDFs from Files app or your documents library
4. Drag to reorder the files if needed
5. Tap Merge — done instantly
6. Share or save the merged file directly

Pro tips

• Wrong page order? Drag and drop to reorder before merging — much easier than re-doing it after
• Large combined file? Run Compress after merging to shrink it before sending
• Password-protected PDFs? Use the Unlock tool first, then merge — you can't combine locked files directly
• Scanned different PDFs separately? Merge them into one, then run OCR once on the combined file

Split PDF — the reverse

If you merged too many pages or need to extract a specific section, use the Split PDF tool to pull out selected pages into a new document. Same interface, opposite direction.