Offline PDF Merge vs RubiMask

Offline PDF Merge lets you merge, split, reorder, and compress PDFs entirely on your iPhone—with complete privacy. No internet required. No uploads. No account. All PDF processing happens locally on your device, so your documents never leave your phone. Fast, simple, and built with native iOS technologies. WHY CHOOSE OFFLINE PDF MERGE? - 100% Offline & Private - All processing is done on-device. - No cloud uploads, no servers, no tracking. - Your files remain completely private. - Works without an internet connection. FAST & POWERFUL - Merge multiple PDF files in seconds. - Split PDFs using page ranges like “1-3,5,7-9”. - Reorder pages with intuitive drag-and-drop. - Compress large PDFs for easy email sharing. DEEP iOS INTEGRATION - Import PDFs directly from the Files app. - Use Share Sheet support to merge PDFs from any app. - Home screen widget for quick actions. - Native iOS design that feels built-in and familiar. PERFECT FOR - Students compiling assignments - Professionals handling contracts and reports - Anyone working with sensitive documents - Users who value privacy, speed, and simplicity FEATURES - Merge PDFs Combine multiple PDF files into a single document. Select files from your iPhone or iCloud Drive, preview the order, and merge instantly. - Split PDFs Extract specific pages using simple ranges such as “1-3,5,7-9” and create new PDFs from large documents. - Reorder Pages Drag and drop page thumbnails to rearrange pages. Ideal for fixing page order or creating custom documents. - Compress PDFs Reduce file size for email sharing. Choose from three presets: Email, Balanced, or High Quality. - Recent Files Quick access to recently used PDFs using security-scoped bookmarks—no need to search through folders again. - Home Screen Widget One-tap access to Merge and Split tools right from your home screen. PRIVACY FIRST Unlike many PDF apps, Offline PDF Merge: - Never uploads your files - Does not require accounts or logins - Contains no analytics or tracking - Works entirely offline - Uses Apple’s PDFKit for on-device processing - Open source and transparent. View the code on GitHub. TECHNICAL DETAILS - Supports all standard PDF files - Processes files up to 100 MB (device-dependent) - Built using Apple’s native PDFKit framework - Uses security-scoped bookmarks for safe file access - Temporary files are automatically cleaned up NO SUBSCRIPTIONS. NO ADS. NO UPSELLS. Free. Simple, honest.

【PDF & Photo to Text, Audio, Translation】OCR, translate, and read aloud — all in ONE app! Load scanned books, PDFs, or photos → OCR text extraction → translate → listen with text-to-speech or export audio files. Everything in one app. For vertical Japanese books, RubiMask auto-masks ruby (furigana) before OCR, so small phonetic characters never scramble your text — a unique feature for Japanese book digitization. PROBLEM SOLVED "OCR scrambles my Japanese text because furigana mixes with main characters..." "Scanned books have terrible text recognition accuracy..." "I want to listen to my books as audio..." "I need to translate a printed document I photographed..." KEY FEATURES 【Multilingual OCR】 - Specialized recognition for vertical Japanese text - Supports English, Chinese, Korean, French, German, Spanish, and many more - Choose the recognition language per document - Edit recognized text directly in-app - Real-time character change tracking - Automatically removes running headers and page numbers, recognizing body text only 【Auto Ruby Masking】(unique for vertical Japanese) - Automatically detects text columns in vertical Japanese - Calculates column spacing to mask only ruby areas - Robust on gray-paper scans and irregular layouts - Fully adjustable column width and pitch, tap-to-edit masks 【Enhanced Photo Import】 - Auto perspective correction for documents photographed at an angle - Rotate photos 90° left or right - Recognizes high-resolution photos (12MP+) at full quality 【Translation】 - Translate recognized text with one tap (iOS 17.4+) - Great for language learning and reading foreign documents 【Text to Speech】 - Listen to recognized text with natural voices - Export audio files (M4A) — turn books into audiobooks! - Adjustable speed and voice 【Multiple Export Formats】 - Text file (.txt) - Audio file (M4A) - PNG images (ZIP compression available) - Masked PDF output - Save directly to Photos - Export options: insert page breaks or join lines into sentences 【Convenience Features】 - App interface available in 35 languages - Sample PDFs in your language to try every feature - Margin masking (remove page numbers, headers) - Manual mask editing (drag & drop) - Undo/redo for mask editing - Project save/load for pause & resume - Pinch-to-zoom for precise adjustments PERFECT FOR - Digitizing paper books and rare editions - Extracting text from novels and documents - Preparing source text for translation - Creating furigana-free versions for Japanese learners - Converting books to audiobook format - Creating accessible text for screen readers - Reading printed foreign-language documents PREMIUM FEATURES - Remove all ads - Unlimited pages (free: 100 pages) - Unlimited project saves (free: 3 projects) - PDF export - Audio export (M4A) Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://keik.co.jp/rubimask/privacy-en.html