DoCube vs I Read PDF

DoCube is a multi-format reader and personal knowledge base built for deep reading. Bring PDFs, EPUBs, local videos, web snapshots, Markdown, and organized scanned documents into one library. Annotate, link, search, translate, export, and review while you read or watch. Your materials are not merely stored—they gradually become knowledge you can retrieve, connect, and remember. 【Deep Reading Across Formats】 DoCube supports PDFs, EPUBs, local videos, offline webpages, Markdown, and parsed documents. Whether you work with research papers, ebooks, web articles, course videos, lectures, interviews, or your own Markdown notes, you can read, watch, and manage them together in DoCube. 【Deep Study for Video】 Import local videos and study courses, lectures, and interviews as deeply as documents. DoCube can read embedded subtitles and, on supported devices, generate subtitles for videos that do not have them. Search subtitles; switch between original, translated, and bilingual views; annotate subtitles; use chapter outlines, playback speeds, and A/B looping. Open a search result, annotation, or chapter to return to the exact moment, turning video into knowledge you can retrieve, connect, and review. 【Multi-Tab Reading】 Open multiple documents and videos in tabs, just like a browser, and switch quickly between materials. Read a paper, compare references, watch a course, or return to where you left off without losing context. 【Annotations and Notes in Context】 Use highlights, underlines, strikethroughs, quotations, links, and Markdown notes directly on source text or at a precise location in video subtitles. Your thinking stays connected to its context. 【Link Materials Together】 DoCube can link an annotation in a document or video to a precise location in another resource. Connect scattered chapters, paragraphs, webpages, video clips, and notes into your own paths through knowledge. 【Search What You Have Read and Watched】 Search not only titles and body text, but also video subtitles, highlights, quotations, links, notes, and cards. Anything you have read, watched, marked, or written can help you find the right material again. 【Keep Reading in Other Languages】 Translate selected text while reading. Some document types support full-document translation and translated exports, while videos support subtitle translation and original, translated, or bilingual display. Read foreign papers, webpages, ebooks, and course videos without constantly switching tools. 【From Annotation to Review】 Turn important content from documents and videos into review cards. Flip cards, mask cards, and review plans bring what you have read and watched back at the right time, instead of letting it disappear after you finish. 【Export and Sync】 Export document content and translations to common formats, including bilingual versions. DoCube is available on iPhone, iPad, and Mac, with iCloud sync and local Wi-Fi transfer. Ideal for: - People who read research papers and professional materials - Learners organizing PDFs, EPUBs, webpages, Markdown, and videos - People who study long-term with course, lecture, and interview videos - Deep readers who want annotations, notes, and review in one loop - Anyone building a personal knowledge base instead of merely collecting files The free version manages up to 5 documents and lets you experience the core reading and knowledge-management workflow. Upgrade to Pro to remove the document limit and build an unrestricted personal library.

Scan, edit, and transform PDFs entirely on your device. No uploads. No accounts. No compromises. iReadPDF is a beautifully designed PDF toolkit that puts your privacy first. Every feature works 100% offline – your documents never leave your device, ever. Join thousands of users who trust iReadPDF for their most sensitive documents. Whether you need to scan receipts, merge contracts, compress large files, extract text, or add watermarks – iReadPDF makes it simple, fast, and completely private. Take control of your documents today. DOCUMENT SCANNING • Scan any document using your camera with automatic edge detection • Smart perspective correction for perfectly aligned scans • Convert paper documents to searchable PDFs instantly • Capture receipts, contracts, notes, whiteboards and more • Multi-page scanning for longer documents PDF MERGING • Combine multiple PDFs into a single document • Merge contracts, reports, or any PDF files effortlessly • Preserve original quality and formatting • Rearrange pages before merging • Perfect for consolidating documents PDF SPLITTING • Split large PDFs into separate files • Extract specific page ranges • Create individual files from multi-page documents • Organize your documents exactly how you need them PDF COMPRESSION • Reduce file sizes by up to 80% • Choose from multiple compression levels • Maintain readable quality while saving space • Perfect for email attachments and storage • See file size reduction in real-time IMAGE CONVERSION • Convert images to PDF with one tap • Support for JPG, PNG, HEIC and more • Convert PDF pages back to images • Batch conversion for multiple files • Maintain image quality throughout TEXT EXTRACTION (OCR) • Extract text from scanned documents • Powered by on-device machine learning • Copy text to use anywhere • Works with photos and PDF scans • No internet connection required WATERMARKING • Add text watermarks to protect your documents • Insert image watermarks for branding • Customize position, size, and opacity • Apply to single or multiple pages • Professional document protection PRIVACY FIRST • 100% on-device processing – nothing is ever uploaded • Works completely offline – no internet required • No accounts, no sign-ups, no tracking • No analytics, no data collection, no ads • Your files stay on YOUR device, always • Perfect for confidential documents DESIGNED FOR YOU • Clean, intuitive interface that stays out of your way • Fast processing with real-time progress indicators • Dark mode support for comfortable viewing • Save directly to Files or share anywhere • Universal app for iPhone and iPad • Supports all standard PDF formats WHO IS IREADPDF FOR? • Students managing coursework and lecture notes • Professionals handling contracts and reports • Small business owners digitizing receipts • Anyone who values document privacy • Users tired of apps that upload their files iReadPDF is free to use with all features included. No subscriptions, no hidden fees, no premium tiers – just a powerful PDF toolkit that respects your privacy. We built iReadPDF because we believe your documents are your business. In a world where most apps want to upload your files to "the cloud," we chose a different path. Every feature runs entirely on your device using Apple's powerful on-device frameworks. Your documents never touch our servers because we don't have any. Download iReadPDF today and experience PDF tools the way they should be – private, powerful, and completely under your control. Terms of Use: https://www.ireadpdf.com/help/terms Privacy Policy: https://www.ireadpdf.com/help/privacy