Smaller PDFs and photos. Nothing leaves your iPhone.

What is in it

Everything runs on your iPhone. Nothing to set up, and nothing to sign in to.

1. Your documents stay yours

   Contracts, bank statements, IDs and medical records are compressed on your iPhone, with Apple's own frameworks and qpdf built into the app. They are never sent to a server, so there is no website to trust with them.

2. Text stays text

   Images inside a PDF are made smaller, while text, links and drawings are left as they are. A compressed PDF can still be searched and copied from, page for page and word for word.

3. Scans and photos, a fraction of the size

   A scanned page or a photo from your camera often shrinks by more than 90 percent: a 10 MB scan comes back at about 300 kB. Photos are capped at 2400 pixels, and every photo loses its location and camera details, even one that was already small.

4. Forms, markup and signatures intact

   Filled-in forms keep their answers, and highlights, notes, stamps and drawings stay where they were. A digitally signed PDF is never changed, so its signature stays valid, and an encrypted PDF stays encrypted.

5. Kept when it cannot shrink

   When a file is already as small as it gets, Shrink says so and keeps it as it was. Every copy shows its size before and after.

6. From anywhere

   Pick a file or a photo in the app, or share a PDF or an image from Files or Mail and choose Shrink. Every compressed copy opens in a preview and can be shared from there.

Who uses Shrink

• Job and visa applicants

  Upload forms with a 2 MB or 5 MB limit take the document on the first try.

• Anyone sending email

  Attachments that fit, without a link to a file service.

• People with confidential paperwork

  Tax returns, contracts and medical records never touch a compression website.

• Students

  Scanned notes and assignments small enough for the course portal.

• Small businesses

  Signed agreements stay valid, and invoices and statements get small enough to file.

• Photographers on the go

  Large camera photos turned into shareable copies, without location data.

Where your files are

There is no Shrink server, so this is the only place they can be.

On your iPhone

Your originals stay where they were. The compressed copies are made and kept in the app until you delete them. No accounts, no login, no analytics.

Wherever you share them

A compressed copy leaves your iPhone only when you share it yourself, to the app or person you pick.

Read the full detail in the privacy policy.