Available on iPhone & iPad

Your PDFs.
Your device.
Your privacy.

Compress, merge, split, sign, and convert PDF files — entirely on your device, with no uploads to any server.

Download on the App Store
Everything you need

One app for every PDF task

All processing happens locally on your iPhone or iPad — your documents never leave your device.

Compress

Reduce PDF file size without sacrificing readability. Choose from multiple quality presets to find the perfect balance.

🔗

Merge

Combine multiple PDFs into a single document in seconds. Drag to reorder pages before merging.

✂️

Split

Extract specific pages or split a PDF into multiple files. Works with any document, any size.

✍️

Sign

Add your signature, initials, date, or free text to any PDF. Fill interactive form fields effortlessly.

🖼️

Convert

Turn photos from your camera roll into a polished PDF document instantly, right from your device.

📚

Library

Organise all your processed documents in one place. Star favourites, add tags, and lock sensitive files with Face ID.

Your documents stay on your device

Folio processes everything locally using Apple's PDFKit and Core Graphics frameworks. No document content is ever uploaded, analysed, or shared with any server — including ours.

No uploads No account required No advertising tracking On-device processing only iCloud sync optional Face ID lock

Folio Pro

Unlock unlimited use of every feature with a one-time purchase — no subscription, no recurring fees.

Unlimited compressions
Unlimited merges
Unlimited splits
Unlimited signatures
iCloud library sync
Priority support
Get Folio Pro