Sign PDF: Editor & Certificate

Sign PDF Document turns your iPhone and iPad into a complete PDF office: sign contracts in seconds, fill out forms, scan paper documents and keep everything organized — without printing a single page.

SIGN, YOUR WAY • Draw your signature with your finger or Apple Pencil and place it anywhere on the page • Sign with a digital certificate (PAdES): import your .p12 or create one right in the app • Add initials, dates, checkmarks and text • Your signatures are stored securely on your device, ready to reuse

FILL AND EDIT • Fill out interactive PDF forms • Add text, highlights and annotations • Stamp images onto any page

SCAN AND CONVERT • Scan paper documents with your camera, with automatic edge detection • Run OCR to turn scans into searchable text • Convert Word documents and photos to PDF

ORGANIZE AND PROTECT • Merge several PDFs into one and reorder, rotate or delete pages • Compress heavy PDFs so they are easy to share • Lock documents with a password — or remove a password you know

CLOUD AND AI • Open and save files in iCloud, Google Drive and OneDrive • Ask the built-in AI Assistant about the document you are reading: summaries, answers, key data in seconds

MADE FOR REAL LIFE • Available in 45 languages • The core tools work offline: your documents stay on your device unless you decide to share them

PREMIUM FOR LIFE — NO SUBSCRIPTIONS One single purchase unlocks everything, forever. No recurring payments, no account required.

A lease, an invoice, a school form or a job contract: sign it and send it back before your coffee gets cold.