Open-source alternatives to Reader

PyPDF2 is a pure Python library for transforming, securing, and extracting data from PDF documents. It provides a comprehensive suite of tools to modify page layouts, manage document security, and retrieve embedded metadata without relying on external C libraries. The toolkit enables document assembly through the merging of multiple files and the splitting of documents into smaller parts. It also supports page-level transformations, including the ability to rotate pages and adjust visible crop areas. The library includes capabilities for security management via password-based encryption and

PDF-Guru is an AI-powered document processor and study material converter designed to transform textbooks, research papers, and multimedia content into structured flashcards for spaced repetition systems like Anki. It functions as a content pipeline that uses language models to extract key concepts and facts from unstructured documents to generate question-and-answer pairs, cloze deletions, and multiple-choice cards. The system distinguishes itself through a comprehensive PDF management suite and multi-format parsing. It provides advanced document utilities including optical character recogni

SVProgressHUD is a progress HUD library and overlay manager for iOS and tvOS applications. It provides a lightweight interface system for signaling background activity and operation status through task progress indicators and loading spinners. The system includes capabilities for visual style configuration, allowing for the adjustment of colors, fonts, and images. It also integrates haptic feedback triggering to generate physical vibrations on supported hardware to signal success, information, or error states. The library covers the management of app loading states and the display and remova

HMSegmentedControl is a customizable, scrollable selection interface for iOS applications. It serves as a UIKit component that replaces standard system segmented controls to provide a selection bar capable of switching between different views or data sets. This component is distinguished by its support for horizontal overflow scrolling, which allows users to pan through selection options when the number of segments exceeds the available screen width. It provides precise control over the visual identity of the interface through custom fonts, colors, and text attributes. The library covers the

JVFloatLabeledTextField is a reusable UIKit component for iOS that provides a text input field with a floating label. It animates the placeholder text into a hovering label when the field is focused or contains text, maintaining visual context for the user during data entry. This library functions as a programmable interface element for native applications developed with Swift and Objective-C, specifically designed to implement modern mobile form design patterns. The component manages these interactions through a combination of state-driven label transitions and constraint-based layout anima

A collection of iOS components.

FlatUIKit is a flat design framework and component library for iOS. It provides a set of reusable interface elements and styling tools to implement a minimal aesthetic across native mobile applications. The kit replaces standard iOS controls with a collection of pre-styled components, including buttons, text fields, and segmented controls. It utilizes a predefined flat color palette, custom font integration, and a dedicated icon set to ensure a cohesive visual identity. The framework covers a wide range of UI elements, including customizable input controls, table cells, and navigation compon

QMUI_iOS is an iOS development framework that extends standard UIKit components and provides a unified theme configuration system for faster app development. It functions as a collection of ready-made tools for device information, dynamic type, keyboard management, and status bar handling, while also offering a configuration system that adjusts an app's entire visual style—colors, navigation bars, inputs, and lists—from a single table. The framework differentiates itself by reading the device model locally to apply compatibility measures without uploading device information, and by providing

MGSwipeTableCell is an iOS mobile UI library providing a custom UIKit table view cell subclass. It is a swipeable UI component designed to implement swipe-to-action patterns within native Apple mobile applications. The library enables the creation of interactive table cells that reveal hidden buttons through horizontal swipe gestures. It includes expandable swipe action triggers that execute specific events when a gesture exceeds a defined distance threshold. The component covers mobile UI gesture integration and table view customization, utilizing coordinate-based layout mapping and state-b

FloatingPanel is a Swift UI component for iOS that provides an interactive bottom sheet and panel manager. It functions as a modal presentation controller that allows developers to display floating containers for related content and utilities alongside a main screen. The system utilizes a magnetic anchor system to snap panels to predefined vertical positions and supports the management of multiple panels within a single view. It synchronizes the position of the panel with the scrolling behavior of internal views to coordinate movement during user interaction. The project covers capabilities

TTTAttributedLabel is a rich text label for iOS applications that serves as an extension to UIKit typography. It provides a replacement for standard system labels, enabling advanced layout control and the rendering of attributed strings with custom paragraph styling, line spacing, and vertical alignment. The component is distinguished by its ability to generate interactive links within text blocks, using either custom ranges or automated data-detector pattern matching for phone numbers and addresses. It includes a specialized accessibility system that exposes these individual links as selecta

AwesomeMenu is a reusable iOS user interface component that provides an animated radial menu system. It serves as a navigation tool for mobile applications, utilizing motion and rotation to present a set of available actions to the user. The component focuses on circular navigation menus that expand and collapse using CoreAnimation for fly-out transitions. It implements a radial layout where menu items are positioned using polar coordinates and selected via angle-based input mapping. The system handles custom UI animations and iOS app navigation by organizing menu elements as independent ani

MarqueeLabel is a UIKit label extension for iOS that provides a scrolling text component. It automatically animates text content when it exceeds the available width of the view. The project includes a storyboard custom inspector, allowing the configuration of marquee speed, direction, and animation curves directly within the Xcode interface. The component manages dynamic text layout by scaling font sizes to fit the frame and implementing edge fading effects to blend text into the background. It also provides mechanisms to control the state of scrolling animations.

pdf-lib is a JavaScript PDF manipulation library used for creating, modifying, and editing PDF documents programmatically. It functions as a cross-runtime tool compatible with Node, Browser, Deno, and mobile JavaScript environments. The library provides a programmatic interface for document editing and form generation. It supports building interactive PDF forms, populating existing fields with custom data, and flattening forms into static content. Its broader capabilities include generating new documents from scratch, rearranging or copying pages between files, and managing document metadata

SDCycleScrollView is an iOS carousel UI component that provides a looping scroll view for displaying images or text in a continuous horizontal or vertical sequence. It functions as an infinite scroll view that automatically cycles through content items at set intervals. The component includes a page control navigation indicator to show the current position within a loop using customizable dots or images. It supports customizable carousel content through custom cell layouts and associated title arrays. The tool manages scroll behavior through controls for scrolling directions and the ability

AVLoadingIndicatorView is a reusable iOS user interface component designed to display background processing states. It specializes in rendering high-quality video files and scalable vector graphics to serve as activity indicators. The project distinguishes itself by using video content as the primary visual for loading animations instead of standard system spinning animations. It utilizes vector drawing and coordinate transformations to maintain visual sharpness and scaling across different screen resolutions. The component covers animation visibility control, state transitions, and the visu

UITableView-FDTemplateLayoutCell is a specialized table view cell component for iOS designed to automatically calculate and manage dynamic row heights based on content constraints. It provides a programmatic implementation for determining cell dimensions using auto layout to ensure content fits without requiring manual height overrides. The project utilizes a template-cell sizing mechanism that employs a hidden cell instance to calculate dimensions without triggering the actual table view rendering process. To maintain scrolling performance in long lists, it includes a caching system that sto

Cards is an iOS UI component library and a collection of reusable Swift components designed to render app marketplace style cards. It provides pre-defined layout templates for displaying application information and metadata on iOS devices. The library focuses on recreating the visual style of a mobile application marketplace, specifically producing user interface elements that mimic the look and feel of the Apple App Store. The project implements these views using a declarative SwiftUI layout, utilizing a composition-based hierarchy and protocol-oriented data modeling to decouple data struct

AsyncDisplayKit is an asynchronous UI framework and performance library for iOS. It provides a collection of performant alternatives to standard views, allowing developers to build responsive interfaces by offloading layout and rendering tasks to background threads. The framework is centered around a declarative layout engine based on a flexbox model, which calculates element positions and sizes asynchronously. It utilizes a node-based abstraction to wrap native views, enabling the instantiation and configuration of UI hierarchies on background threads to prevent main thread blocking. The sy

ShowcaseView is an iOS UI overlay library and user onboarding framework. It provides a customizable feature highlight component designed to visually isolate and emphasize specific buttons or sections of a mobile user interface. The library enables the creation of interactive product tours and in-app feature discovery by drawing attention to specific interface elements. It allows for the customization of highlight appearances, including colors and shapes, to match the visual theme of the application. The framework manages the user onboarding experience by highlighting UI elements and guiding

JDStatusBarNotification is a Swift notification banner library and iOS UI component designed to display customizable alert banners and progress indicators below the status bar and notch. It provides an interactive notification interface that supports a Swift-Objective-C compatible framework for integration into various mobile projects. The library differentiates itself through an interactive notification UI that supports drag-to-dismiss gestures and dynamic layout configurations. These capabilities allow for the manual removal of alerts via interruptible gestures and the real-time adjustment

Chatto is a Swift-based UI framework and component library for building messaging interfaces on iOS. It provides a collection of reusable interface components for rendering text bubbles, photo attachments, and interactive input areas. The framework centers on a paginated chat interface that loads conversation history in both directions. To maintain scrolling performance, it employs background layout calculations for message cells. The library covers the construction of modular messaging screens and the implementation of mobile chat interactions, such as keyboard dismissal and swipe-to-reveal

Embed PDF Viewer is a browser-based PDF rendering library that uses a WebAssembly port of the PDFium engine to display documents entirely on the client side, with no server-side processing required. It provides a framework-agnostic core engine layer that manages the PDF document lifecycle, memory allocation, and WebAssembly resource cleanup, with dedicated integration hooks for React and Vue 3 that handle initialization, document loading, and reactive state management. The library offers both a pre-built, embeddable viewer that can be inserted into any web page with a single initialization ca

M13ProgressSuite is a suite of mobile user interface components for iOS designed to track activity and task completion. It provides a collection of visual indicators including progress bars, rings, and pies, as well as specialized tools like navigation progress bars and status heads-up display overlays. The library features a controllable progress indicator specifically for the top of navigation areas to track page-level activity. It also includes customizable heads-up displays that overlay views to communicate ongoing progress and status information. The suite supports various task completi

SWTableViewCell is a UIKit component and library for adding interactive swipe-to-reveal action buttons to table view cells in iOS applications. It functions as a swipe action manager and a specialized interface element designed to handle touch gestures and sliding animations for list items. The library features a layout mechanism that automatically scales the size of action buttons to fit available screen space based on the number of buttons added. It uses a system to detect touch events that trigger specific actions or slide cells back to their original positions. The system manages the spa

DZNEmptyDataSet is a reusable UI library and collection of view components designed for rendering empty state screens on mobile platforms. It provides a system for displaying customizable placeholder views and messages when a data collection contains no information. The library enables the creation of placeholder views containing images, text, and buttons. It includes capabilities for visual styling using attributed strings, visibility control based on data set status, and layout refreshing without reloading the underlying data source. The system also handles user interactions, allowing the

This project is a digital collection of academic material on deep learning provided as a machine learning educational resource. It delivers the complete textbook and individual chapters in portable document format for offline study and research. The repository includes electronic publication versions of the textbooks optimized for digital reading devices and e-book readers. It functions as a segmented document repository, providing the text both as a full volume and split into individual chapters to allow for targeted reading.