# PDF Search PRO: Book Library — Offline Finder, Notes & Markup > AI-powered document search with OCR, NLP, and cross-device syncing. (iPhone/iPad app by Muharrem Ozkan.) - Source: https://appshunter.io/ios/app/pdf-search-pro-book-library/id1541111060 (this page in markdown: same URL + `.md`) - Developer: [Muharrem Ozkan](https://appshunter.io/developer/443806426) - Category: Utilities, Productivity - Price: $29.99 - Rating: 4.60/5 from 9 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 15 MB - Languages: American English - Released: 2020-11-20 - Data updated: 2026-10-07 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/pdf-search-pro-book-library/id1541111060/reviews.md ## What is PDF Search PRO? PDF Search PRO — one purchase, every feature, no subscription PDF Search PRO turns everything you own into a library you can search in the time it takes to type. Books, textbooks, lecture notes, contracts, papers and manuals, all ranked by how well they answer you. Ask a question in plain words and get an answer, with the exact pages it came from. Everything is included from the first launch. No subscription, no in-app purchases, no ads. Built for people who live in documents: students, lawyers and researchers. ASK YOUR LIBRARY ANYTHING — NEW AI Chat answers questions about your documents in plain language. Ask "can I end my lease early?" and it searches your library, reads the pages that matter and answers, citing the page each fact came from so you can check it yourself. • Ask about your whole library, or the one book you are reading • Every answer carries page references you can tap • Conversations are saved, so you can pick one up later • Runs on your device, or on Apple's Private Cloud Compute AI Chat needs Apple Intelligence: an iPhone 15 Pro or later, or an iPad with an M-series chip, running iOS 26 or later. A FINDER THAT RANKS, NOT JUST MATCHES Ordinary search tells you a word exists somewhere. PDF Search PRO scores every page on how well it answers you: where the words appear, how close together they are, whether they land in a heading. The strongest pages come first. • Every ranked result, grouped by book or document • Jump straight to the page, your words highlighted in context • Search everything at once, or narrow to a folder or tag • Search only the table of contents, match case, skip duplicates • Export and share results LANGUAGE, NOT JUST LETTERS The indexer understands the shape of a word. Look for "hike" and find "hiking"; look for "children" and find "child". Plurals, stems and near matches are covered too. WORDS LOCKED IN IMAGES Text recognition reads photographed pages, scanned contracts and screenshots of slides, and adds every word to your index. A photo of a page becomes as searchable as the page itself, in every language your device supports. The built-in scanner turns paper, notes and cards into PDFs and files them with everything else, searchable from the moment they land. NOTES, HIGHLIGHTS AND MARKUP • Highlight, underline and strike through while you read • Bookmarks with notes, gathered in one place across every book • A document's table of contents, for moving around a long textbook quickly AN ORGANIZER FOR A LARGE LIBRARY • Folders on device or in iCloud, plus any folder or file you point it at • Tags, to cut across folders however you think • Index status at a glance: what is indexed and what is queued • PDFs alongside Word and PowerPoint, Pages and Keynote, rich text, plain text, source code and saved web pages YOUR MAC, IN YOUR POCKET Run PDF Search on your Mac and sync over Wi-Fi with a single click. Documents come across with their index intact, so your iPhone or iPad does not have to do the work twice. OFFLINE AND PRIVATE Indexing and search happen entirely on your device and work without a connection. Your documents stay yours. PAY ONCE PDF Search PRO is a one-time purchase. Every feature above is yours on every iPhone and iPad signed in to your Apple Account, with no renewals. Privacy Policy: https://pdfsearch.app/privacy.html Terms of Use: https://pdfsearch.app/terms.html ## Key features - AI-powered document search - Natural Language Processing (NLP) - Built-in OCR for text recognition - Document scanning to PDF - Exportable search results - Cross-device syncing ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/pdf-search-pro-book-library/id1541111060/reviews.md ### 1/5 — Unreliable and only updates the subscription modeled application *2024-11-15* I have this app on my iPad Pro and MacBook Pro and they are worlds apart as far as reliability goes. Everytime I go to use the iPad version it’s rarely ever possible due to it constantly reindexing all my files which takes hours each time just from adding one file or sometimes adding none. I will search words on the MacBook Pro and receive a wealth of results but then on the iPad Pro it will constantly say “no results found” despite them neing the same pool of documents I’ve turned on and off the explicit synchronization, I’ve indexed the fils on my MacBook then saved them to make sure they were scanned properly too no avail. This app was 50$ and it was not worth it for a one person who constantly uses it for research I feel slighted for the fact that the pdf search application with as subscription model has beenn updated 3 times this year while the one time purchaser hasn’t been updated att all the entire year/ It isn’t like this app is perfect why would it be left unupdaterd while the subscription is updated ? That isn’t fair and I dont think I should have to buy it twice to get updates. ### 4/5 — Super hilfreich, aber mit Verbesserungspotential *2024-09-10, version 8.27* Erst einmal bin ich begeistert, dass es mich nur Bruchteile von Sekunden kostet, Begriffe in PDFs zu finden. Hier sind meine Vorschläge zur Optimierung: - Das Antippen des Suchbegriff-Vorschlages in der Liste sollte direkt die Ergebnisliste aufrufen. Nochmal auf Suchen klicken ist lästig und in 99% der Fälle unnötig. Für den Fall, dass man Wortkombinationen mit den Vorschlägen zusammensetzen will, könnte dieser Direktsuchstart als Option in den Einstellungen schaltbar sein. - Daran anknüpfend ist der Wunsch Logikverknüpfungen der Suchbegriffe nutzen zu können (z.B. UND, ODER, NOT), vielleicht sogar Regular Expressions. - In dem importierten Indexpfad wäre es super, wenn man Unterverzeichnisse ausschließen kann. Das bereinigt die Suchergebnisse, so dass man schneller die passenden Dokumente findet. - In den angezeigten Dokumenten/PDFs wäre es schön, wenn oben rechts bei der aktuellen Seite die Gesamtseitenzahl dabeisteht (Seite 21/56). Für eine Umsetzung der Vorschläge wäre ich sehr dankbar. Die App auf deutsch ist ein kleiner nachgelagerter Wunsch. Da ich damit bereits Erfahrung habe, kann der Entwickler gern zu mir Kontakt herstellen. ### 5/5 — Incredibly helpful *2023-06-07* Well worth the purchase. Been able to scan the text for textbook pdfs I own, makes finding the information so much easier to find while saving me the hassle of carrying the physical copies around. Highly recommend this app! ### 5/5 — Funktioniert super um Massen an PDFs zu durchsuchen *2022-11-30, version 8.22* Funktioniert der Suchprozess echt schnell und meiner Ansicht nach auch zuverlässig. Man darf nicht vergessen dass bei der OCR Texterkennung von manchen Dokumenten nicht immer das hinterlegt ist was man als Benutzer sieht. Dh da kann im Wort ein Leerzeichen sein und schon gibt es Schwierigkeiten genau diesen Begriff zu finden. Ich bin sehr zufrieden. Womit das Programm nicht gut zurecht kommt ist mit PDFs die in der iCloud liegen. Diese Dateien sind wenn man sie nutzt im Gerätespeicher, werden aber irgendwann vom Betriebssystem wieder gelöscht um Speicher zu sparen. Ich nutze die App täglich für die Arbeit und bin sehr zufrieden! ### 5/5 — Wow *2022-02-09* I’m using this app to search through large libraries of research and I’m in love. Beautiful work. ## Frequently asked questions about PDF Search PRO ### What is PDF Search PRO? PDF Search PRO is a utility app designed for fast and intelligent searching across multiple documents. It utilizes AI, NLP, and OCR to enhance document workflow productivity and offers cross-device syncing. ### How does PDF Search PRO's AI search work? Instead of just keyword matching, PDF Search PRO's AI assesses page relevance by analyzing factors like keyword presence in titles, mimicking a human search approach for more pertinent results. ### Can PDF Search PRO recognize text in images? Yes, PDF Search PRO includes built-in OCR capabilities that allow you to index and search text within images inside documents, provided you are on iOS 13 or later. ### What languages does the OCR feature support? The OCR feature supports English on iOS 13. Subsequent iOS versions expand support to English, French, German, Italian, Spanish, Portuguese, and Chinese. ### How much does PDF Search PRO cost? PDF Search PRO is a paid application, priced at $29.99. There are no in-app purchases or advertisements mentioned. ### Does PDF Search PRO have ads? No, PDF Search PRO is ad-free. The application is a one-time purchase and does not display advertisements. ### What devices is PDF Search PRO compatible with? PDF Search PRO is available for iPhone, iPad, and iPod. It requires iOS 13 or above for its OCR functionality. ### How often is PDF Search PRO updated? The app was last updated on October 19, 2023, indicating regular maintenance and feature enhancements. Its latest version is 8.27. ## Version history (last 5 releases) ### 9.0 — 2026-09-23 Version 9.0 — the biggest release PDF Search PRO has had, and it is free for everyone who already owns it. AI CHAT, INCLUDED Ask your documents a question in plain words and get an answer back, with the exact pages it came from. • Ask about your whole library, or about the one document you are reading • Every answer cites its pages; tap a reference to open that page and check it • AI Chat searches with PDF Search's own ranking, so it reads the pages that actually answer you rather than the first ones it finds • Conversations are saved, so you can pick one up days later • Runs on your device, or on Apple's Private Cloud Compute AI Chat needs Apple Intelligence: an iPhone 15 Pro or later, or an iPad with an M-series chip, running iOS 26 or later. Like every other feature, it comes with your purchase. No subscription, no in-app purchases. A COMPLETE REDESIGN Every screen has been rebuilt. • A new home screen that puts search and your locations first • Search results grouped by document, with each matching page and its rank, and a progress panel while a long search runs • Redesigned document rows with page previews and clear indexing status • Rebuilt tags, bookmarks and index status screens • Empty states that tell you what to do next instead of showing nothing • New typography, colour and iconography throughout SETTINGS, REWORKED Settings have been reorganised into General, Index, Search and Text Recognition, and now scale properly with your preferred text size. FASTER, LIGHTER Page previews are cached, indexing yields to whatever you are doing, and scrolling a large library stays smooth. Memory use during indexing is substantially lower. ALSO IN THIS RELEASE • A privacy manifest, declaring exactly what the app uses and why • Many smaller fixes across indexing, navigation and the reader Thank you for supporting PDF Search PRO. ### 8.27 — 2023-10-19 - A bug has been fixed which causes problem while indexing. ### 8.26 — 2023-10-19 - Various bug fixes. - Stability improvements. ### 8.25 — 2023-10-15 - Search performance has been significantly improved. - A bug that caused no results when searching with double quotation marks has been fixed. ### 8.24 — 2023-05-23 - Stability improvements. ## Apps similar to PDF Search PRO | App | Rating | Price | Category | | --- | --- | --- | --- | | [Save to Readeck](https://appshunter.io/ios/app/save-to-readeck/id6757165877) | 5.0 (1) | $0.99 | Utilities | | [Pile and Piling Calculator](https://appshunter.io/ios/app/pile-and-piling-calculator/id1181385535) | 5.0 (4) | $1.99 | Utilities | | [JSON Viewer(Pro)](https://appshunter.io/ios/app/json-viewerpro/id6740746553) | — | $2.99 | Utilities | | [WebDAV Browser](https://appshunter.io/ios/app/webdav-browser/id6792386054) | — | Free | Utilities | | [PicList - Photo List App](https://appshunter.io/ios/app/piclist-photo-list-app/id6756153443) | — | Free | Utilities | | [FlightTimeApp](https://appshunter.io/ios/app/flighttimeapp/id6756632781) | — | Free | Utilities | ## More apps by Muharrem Ozkan - [PDF Search: AI Chat & OCR](https://appshunter.io/ios/app/pdf-search-ai-chat-and-ocr/id1303227688) - [G-Wallpapers](https://appshunter.io/ios/app/g-wallpapers/id1495595040) - [PDF Eye : Scanner & Editor](https://appshunter.io/ios/app/pdf-eye-scanner-and-editor/id1533860259) - [PDF Eye Pro : Scanner & Editor](https://appshunter.io/ios/app/pdf-eye-pro-scanner-and-editor/id1587492038) - [Shoot & Search](https://appshunter.io/ios/app/shoot-and-search/id1595602955) All apps by Muharrem Ozkan: https://appshunter.io/developer/443806426 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-07.*