PDF Studio – Reader & Tools

Every PDF tool in one private app — scan, sign, annotate, OCR, convert, compress, merge, compare and grayscale. 100% on your device. No ads, no tracking, no sign-up.

PDF Studio is the all-in-one PDF app that works entirely on your device. No account, no ads, no tracking — your files never leave your iPhone or iPad.

READ & MARK UP • Fast, smooth reader with search, bookmarks and a page thumbnail grid • Highlight, underline, strike through and draw with Apple Pencil or your finger • Add text, shapes, arrows, sticky notes and a date stamp • Sign with your finger and reuse saved signatures • Custom stamps, Night and Sepia modes, a clean Reading View and Read Aloud

SCAN & CREATE • Scan documents with the camera and clean up the edges • Turn photos into a PDF • Make scans searchable with on-device OCR

CONVERT • PDF to Word, plain text or images • Images to PDF • Grayscale a PDF to save ink and shrink the file

ORGANIZE • Merge, split, reorder, rotate, insert and delete pages • Compress, and batch-compress or merge many PDFs at once • Crop margins, extract images and add Bates numbers • Compare two PDFs side by side and highlight what changed

PROTECT • Add or remove a password • Permanently redact text — even every match of a word at once • Watermarks and page numbers

YOUR LIBRARY • Star favorites for quick access and search every PDF at once • Fill in forms • Save to Files / iCloud Drive, plus a Home Screen widget for one-tap scanning • Back up your whole library to one file and restore it on another device

100% ON-DEVICE PRIVACY Everything happens on your device. PDF Studio collects no data — no ads, no tracking, ever. That's the whole point.

PDF Studio Pro unlocks every tool with no limits. Every Pro feature works 3 times free — upgrade yearly or once for lifetime.

Terms of Use (EULA): https://birsoftware.com/terms.html