Shrink your PDFs.
Nothing leaves your phone.
Compacto compresses PDFs entirely on your iPhone — no servers, no internet, no waiting. Just smaller files with crisp, readable quality.
Download on the App Store On the App Store · iPhone · iOS 17+Built for real documents
Scans, contracts, photos, forms — Compacto makes them small enough to email, without the cloud.
Fully offline
Your files never leave the device. No account, no servers, complete privacy.
Instant
Compression runs locally in seconds — even with no internet connection.
Quality presets
High, Recommended, Maximum, or custom DPI & quality. See the estimate before you compress.
Photos → PDF
Turn photos into a single compressed PDF, ready to share.
Batch & history
Compress many files at once and find every result in your history.
Open from anywhere
Share a PDF from Mail, Safari or Files straight into Compacto.
Three taps
Add a PDF
From Files, Photos, or the share sheet.
Pick quality
See the estimated size for each preset.
Save or share
Smaller file, same readable quality.
Privacy by design
Compacto has no servers that can see your documents. Everything — every page, every image — is compressed right on your iPhone. The only thing that leaves is the file you choose to share.