How to Compress a PDF on iPhone & iPad (Safari & Files App Guide)

Published: 2026-03-03 | Read Time: 3 min read

Compress large PDF files directly in iOS Safari or from your Files app without downloading paid subscription apps.

Frequently Asked Questions

Do I need to install an App Store app to compress PDFs on iPhone?

No. DODDY runs 100% inside mobile Safari using client-side JavaScript, eliminating the need for paid App Store subscriptions.