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Merge PDF Files into One

Join certificates, mark sheets and forms into one PDF — reorder files before merging.

✓ Free✓ No upload — runs on your device✓ Works on mobile

Choose two or more PDFs, arrange them with ▲ ▼, and tap Merge PDFs. You get one combined PDF with every page in the order you chose.

Getting documents right for online forms

How to merge pdf files into one

  1. Choose the PDFs (you can add more later).
  2. Reorder them with ▲ ▼ or remove any with ✕.
  3. Tap Merge PDFs — the combined file downloads.

FAQs

How do I merge PDFs on my phone?
Open this page in Chrome or Safari, choose your PDFs, put them in order and tap Merge. The merged file downloads to your phone.
Is there a limit on files?
No fixed limit. Very large files depend on your device memory; for exam forms, merging a few documents is instant.
The merged PDF is too big for the form — what now?
Run it through Compress PDF with your form's KB limit.
Are my files uploaded to a server?
No. The tool runs entirely in your browser using JavaScript — your files never leave your phone or computer, so they stay private.

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