PDF Studio vs FolikPDF

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

Folik is a private, capable PDF workspace for iPhone and iPad. It is completely free: no ads, no subscription, no account, and no in-app purchases. READ AND FIND • Open PDFs from Files or other apps • Search with contextual results and next/previous navigation • Use continuous, single-page, or two-page layouts • Browse thumbnails, outlines, and bookmarks SCAN ON DEVICE • Capture multi-page documents with automatic edge detection • Recognize text locally so new scans are searchable • Keep scans inside Folik unless you choose to share them FILL AND SIGN • Complete standard PDF text, checkbox, radio, and choice fields • Track required fields and jump to the next unfinished field • Create handwritten or typed signatures and initials ANNOTATE AND ORGANIZE • Highlight, underline, strike through, draw, add notes, shapes, text, and stamps • Move, resize, recolor, undo, and redo annotations • Reorder, rotate, duplicate, delete, extract, or combine pages in a new copy EXPORT YOUR WAY • Share the original • Create an editable copy • Export a flattened copy for consistent appearance PRIVATE BY DESIGN Folik processes documents, scans, text recognition, and edits on your device. It has no backend, analytics SDK, or advertising SDK. Compatibility note: Folik supports standard AcroForm fields exposed by iOS. XFA-only forms, certificate-backed digital signatures, JavaScript calculations, and vendor-specific PDF behavior may not be supported. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Folik is open source under the MIT License. https://github.com/x3n-network/FolikPDF