Quick results
A progress screen shows the status, and most files finish in seconds.
PDF Compressor for iPhone & iPad
Compress PDF files
on your iPhone.
Cut PDF size by up to about 60%. Fit email limits and upload caps, and free up storage. Choose from six compression levels.
On a computer? Scan with your iPhone or iPad camera to open the App Store.
- Free to try
- No ads
- Files deleted after processing
~60%smaller at the strongest level
6compression levels
iPhone + iPadnative Swift & SwiftUI app
0 adsno ads in the app
How it works
How to compress a PDF on iPhone
Three steps from a large PDF to a file you can send.
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1
Pick your PDF
Choose a file from Files, iCloud Drive, an email attachment or any app that can share a PDF.
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2
Choose a level
From No Quality Loss to Screen Optimized. You see the estimated reduction first.
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3
Share the result
The compressed file is saved in the app. Send it by email, Messages or AirDrop, or upload it anywhere.
Compression levels
Choose how much to compress
Trade quality for size. Tap a level to see the estimate for a 20 MB PDF.
Original
20.0 MB
Compressed
9.0 MB
55%smaller (estimate)
Estimates are based on typical documents. Results vary. Scans and image-heavy files shrink the most.
Features
What it does
A simple app with one job.
6 compression levels
From lossless to maximum reduction, each with a short description and an estimated saving.
Folders and file manager
Organize compressed PDFs in folders, search them, and rename or share in a tap.
Password-protected PDFs
Enter the password and compress a locked file like any other.
Private by design
Files are sent over HTTPS and deleted after compression. No ads, no tracking of your documents.
For iPhone and iPad
A native Swift and SwiftUI app for iOS and iPadOS.
Use cases
When you need a smaller PDF
Whenever a file is too large.
Most email providers limit attachments to about 20–25 MB. Compress the file instead of splitting it.
Uploads and forms
Job applications, visa forms, and school or government portals often limit uploads to a few megabytes.
Storage
Scanned contracts, invoices and ebooks add up. Compressing them frees space on your iPhone or iCloud.
Faster sharing
Smaller files send and open faster on slow connections, including in WhatsApp, Slack and Messages.
Your documents stay private
Files travel over an encrypted HTTPS connection, are held only while they are being compressed, and are then deleted automatically. We don’t keep, analyze or access the contents of your PDFs, and the app has no ads. Read the full Privacy Policy.
FAQ
Common questions
How do I compress a PDF on my iPhone?
Open PDF Compressor, pick a PDF from Files or another location, choose a compression level and tap Compress. The smaller file is saved in the app, and you can share it by email, Messages, AirDrop or any other app.
How much smaller will my PDF be?
It depends on the document and the level you choose. Typical savings range from about 10% to 60%. Scans and image-heavy PDFs shrink the most. Text-only PDFs are already small.
Will compressing a PDF reduce its quality?
That is up to you. No Quality Loss keeps the original quality. Stronger levels such as Web Optimized and Screen Optimized give up some image sharpness for a much smaller file. Print Quality keeps the output suitable for printing.
Is PDF Compressor free?
The app is free to download, and you can try it with a few free compressions on smaller files. An optional subscription, managed through your Apple ID, unlocks unlimited compressions and larger files.
Are my PDF files safe?
Files are sent over an encrypted HTTPS connection, held only while they are being compressed, and then deleted automatically. We do not keep, analyze or access your documents, and the app shows no ads.
Does it work on iPad?
Yes. PDF Compressor runs on iPhone and iPad with iOS or iPadOS 18.0 or later.
Can I compress a password-protected PDF?
Yes. If a PDF is protected with a password, the app asks you for it before compressing.
Make your PDFs smaller
Download PDF Compressor and try it on your first file.
Download on theApp Store
Or scan with your iPhone or iPad camera