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vfr/Reader

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4,253 星标·1,124 分支·Objective-C·6 次浏览www.vfr.org↗

Reader

Reader 是一个 iOS PDF 渲染引擎和用户界面组件，旨在在 Apple 平台上显示 PDF 文档。它作为一个文档查看器，使用户能够浏览页面并与嵌入内容进行交互。

该框架通过请求和验证安全凭据来解锁受保护的文档流，从而管理加密文件。它利用平铺层渲染和多线程处理来保持滚动性能和响应速度。

该系统涵盖了通过手势和缩略图进行的文档导航，以及内部和外部链接的解析。它还包括状态管理功能，用于在会话间保存和恢复书签及当前页面索引。

Features

  • PDF Rendering Engines - Provides a native rendering engine that decodes PDF data and rasterizes pages for iOS display.
  • Page Traversal - Enables page movement through swiping, edge taps, and a thumbnail browser.
  • PDF Document Management - Implements comprehensive tools for navigating PDF files, including swiping and thumbnail browsing.
  • iOS UI Components - Ships as a reusable UI component for PDF display and state management on Apple platforms.
  • PDF Viewers - Provides a native iOS UI component for rendering and interacting with PDF documents.
  • PDF Framework Integration - Provides a framework for embedding high-performance PDF viewing into iOS applications.
  • Off-Main-Thread Processing - Offloads PDF parsing and page generation to background threads to maintain UI responsiveness.
  • Tiled Bitmap Rendering - Utilizes tiled bitmap rendering to maintain high frame rates during fast document scrolling.
  • Document State Management - Tracks and persists user state such as current page and bookmarks across rendering cycles.
  • PDF Link Resolution - Resolves internal page links and external web addresses embedded within documents.
  • Session State Persistence - Persists the current page index and user bookmarks across sessions for recovery.
  • App State Persistence - Saves and restores page numbers and bookmarks specifically for iOS device sessions.
  • PDF Encryptions and Decryptions - Provides mechanisms to decrypt and unlock password-protected PDF streams for document display.
  • Link-Based Navigation - Implements coordinate-based detection of internal and external links to trigger document navigation.
  • Paging Navigation Systems - Supports document traversal through horizontal swipes and tap gestures for page cycling.
  • Media Processing - PDF document reader with iBooks-like navigation and security.
  • PDF Tools - Core library for PDF reading.

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查看 Reader 的所有 30 个替代方案→

常见问题解答

vfr/reader 是做什么的？

Reader 是一个 iOS PDF 渲染引擎和用户界面组件，旨在在 Apple 平台上显示 PDF 文档。它作为一个文档查看器，使用户能够浏览页面并与嵌入内容进行交互。

vfr/reader 的主要功能有哪些？

vfr/reader 的主要功能包括：PDF Rendering Engines, Page Traversal, PDF Document Management, iOS UI Components, PDF Viewers, PDF Framework Integration, Off-Main-Thread Processing, Tiled Bitmap Rendering。

vfr/reader 有哪些开源替代品？

vfr/reader 的开源替代品包括： dimuthuupe/androidpdfviewer — AndroidPdfViewer is a user interface library for Android applications that provides a view for displaying PDF… librepdf/openpdf — OpenPDF is a Java library and document processor used for creating, editing, rendering, and encrypting PDF documents.… py-pdf/pypdf2 — PyPDF2 is a pure Python library for transforming, securing, and extracting data from PDF documents. It provides a… mpdf/mpdf — mPDF is a PHP library that transforms UTF-8 encoded HTML and CSS into formatted PDF documents. It serves as a PDF… kevin2li/pdf-guru — PDF-Guru is an AI-powered document processor and study material converter designed to transform textbooks, research… heshammegid/hmsegmentedcontrol — HMSegmentedControl is a customizable, scrollable selection interface for iOS applications. It serves as a UIKit…