This application allows users to view PDFs that have been encrypted using FileOpen technology on their Apple devices. It provides a straightforward way to access secure documents on iPhones and iPads.


216+ iOS apps curated and reviewed
The best fileopen pdf viewer apps on iPhone average 4.4★ across 216+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 1.0★ (1) | No | No | May 2026 | |
| 2 | Free | 4.7★ (632K) | Yes | Yes | Jul 2026 | |
| 3 | Free | 4.8★ (1.8M) | Yes | Yes | Jul 2026 | |
| 4 | Free | 4.6★ (9.1K) | No | Yes | Jul 2026 | |
| 5 | Free | 4.4★ (7.6K) | No | Yes | Jul 2026 | |
| 6 | Free | 4.3★ (3.9K) | No | No | Jul 2026 | |
| 7 | Free | 4.7★ (215K) | Yes | Yes | Jul 2026 | |
| 8 | Free | 4.5★ (2.9K) | No | Yes | Jul 2026 |


This application allows users to view PDFs that have been encrypted using FileOpen technology on their Apple devices. It provides a straightforward way to access secure documents on iPhones and iPads.






This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.






Transform your mobile device into a powerful portable scanner. Instantly scan, edit, and share documents in various formats like PDF, JPG, Word, and TXT. Features include OCR, e-signatures, and secure file management.


Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.


This app transforms your device into a mobile office for managing PDF documents. Edit, eSign, and fill out forms, then share or export them. It offers secure storage and access to millions of templates, with offline capabilities.


This app offers a superior PDF reading experience with its innovative Liquid Mode, which optimizes documents for mobile screens. It also provides robust tools for annotating, signing, managing, and sharing your PDF files, catering to both work and study needs.


This app allows you to edit, annotate, fill out forms, and convert PDF documents. It offers AI-powered summarization and analysis, along with tools to merge, sign, and protect your files. Work seamlessly across Apple devices with a user-friendly interface.


Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.


This app is a comprehensive tool for managing PDF documents. It allows users to quickly view, annotate, edit, and organize PDFs, as well as convert images to PDF. Advanced features like merging, splitting, and password protection are also available.


This app offers a comprehensive suite of tools for managing PDF documents on mobile devices. Users can easily view, annotate, edit pages, fill out forms, and digitally sign documents. It provides a free and unlimited experience for all its powerful PDF manipulation features.


This application offers comprehensive PDF management, including advanced editing, AI-powered summarization and translation, and efficient scanning with OCR. It helps organize, convert, and secure documents for work, study, and personal use.


This app offers a comprehensive suite of tools for managing PDF documents. It allows users to read, edit, annotate, convert, and scan PDFs with an intuitive interface. Features include form filling, digital signatures, page management, and robust sharing options across Apple devices.


Manage and browse files and documents on your iOS device with a powerful download manager and web browser. Organize documents, extract archives, and work with over 100 formats. Supports iCloud, Camera Roll, and iTunes file sharing.


Create, modify, and secure PDF documents on your mobile device. Convert various file types and photos to PDF, scan documents with your camera, and manage files with a built-in file manager. View, annotate, and search within PDF documents with ease.


This app provides a comprehensive suite of tools for managing PDF documents. It allows users to view, edit, scan, convert, and fill out PDF forms. Seamless cloud integration and annotation features enhance productivity on the go.


This app provides comprehensive tools for creating, editing, converting, and organizing PDF files on your mobile device. It offers features like scanning documents, merging files, adding watermarks, and even transcribing audio to text, all without requiring an internet connection.


Transform your device into a powerful PDF creation and management tool. Easily convert various file types, scan documents, merge or split PDFs, and organize your files with robust management options. Share your creations seamlessly through multiple cloud services and export in various formats.


Transform your smartphone into a powerful PDF scanner and editor. Easily convert images and documents to PDF, or convert PDFs to other formats. Protect your files with encryption and share them securely.


Easily manage your PDF files with comprehensive tools for splitting, merging, and cropping. Save and export your processed documents in various formats for seamless sharing and use across devices.


This app offers a comprehensive suite of tools for managing PDF documents. It allows users to compress, convert, edit, merge, split, sign, and protect PDF files. All operations are performed locally on the device for enhanced security.