PDF Studio: Local AI For PDF

PDF Studio is a complete PDF editor that keeps your files on your iPhone — nothing is ever uploaded. EDIT LIKE A DESKTOP APP Change existing text, add text and images, fill forms, sign documents, reorder and rotate pages, merge PDFs, add watermarks and page numbers, and annotate with highlights and notes. SCAN TO SEARCHABLE PDF Scan multi-page documents with automatic edge detection. On-device text recognition makes every scan searchable — the camera image never leaves your phone. COMPRESS, CONVERT, EXPORT • Compress large PDFs to a fraction of their size • Convert images to PDF and PDF to images • Export to Word (RTF), HTML and plain text TRUE REDACTION Permanently black out sensitive content. Redacted pages are rebuilt so the hidden text is destroyed, not just covered. PROTECT YOUR FILES Password-protect and encrypt documents, or remove passwords you no longer need. AI ASSISTANT (APPLE INTELLIGENCE) Ask questions about a PDF, summarise pages, fix every typo across a document, or rewrite text with natural language — powered entirely on-device by Apple Intelligence. No account, no cloud. AI requires iPhone 15 Pro or newer with iOS 26 and Apple Intelligence enabled. On other devices every editing feature above works; the AI assistant simply shows as unavailable. PRIVATE BY DESIGN Your documents never leave your device. Every edit, scan, conversion and AI request happens locally. No ads, no account required. FREE The full editor is free.