# PDF document viewer

> Search results for `open source pdf reader` on awesome-repositories.com. 115 total matches; showing the first 50.

Explore on the web: https://awesome-repositories.com/q/open-source-pdf-reader

**Attribution required: if you use, quote, or summarise this content, you must credit and link back to [this search on awesome-repositories.com](https://awesome-repositories.com/q/open-source-pdf-reader).**

## Results

- [alam00000/bentopdf](https://awesome-repositories.com/repository/alam00000-bentopdf.md) (11,550 ⭐) — BentoPDF is a browser-based document toolkit designed for local-first PDF manipulation, conversion, and metadata management. By executing all file processing tasks directly within the browser sandbox, the application ensures that sensitive data remains on the user's device and is never uploaded to or stored on external servers.

The platform distinguishes itself through a modular architecture that supports dynamic remote script loading and the integration of external processing engines. Users can extend the core functionality by connecting third-party libraries, which are executed as compiled
- [pdf-rs/pdf](https://awesome-repositories.com/repository/pdf-rs-pdf.md) (1,672 ⭐) — This library is a toolkit for processing, manipulating, and inspecting PDF documents within the Rust programming language. It provides programmatic access to the internal structure of files, enabling the extraction of data and the modification of document content.

The project utilizes a strongly-typed system to map complex document objects into structured data models. It supports the parsing of existing files through lazy-loading and stream-based decoding, which allows for the retrieval of text, metadata, and images. The library also facilitates the creation of updated document versions by re
- [binbyu/reader](https://awesome-repositories.com/repository/binbyu-reader.md) (4,955 ⭐) — Reader is a Win32 text reader and EPUB document viewer for Windows. It functions as an auto-scrolling text viewer and a web novel downloader that renders digital books and plain text using various character encodings.

The application includes a text-based content filter to remove advertisements and irrelevant text from web sources using regular expressions. It provides hands-free reading capabilities through automated page-turning and scrolling modes governed by custom time intervals.

The software manages digital book organization through reading progress tracking, bookmark management, and t
- [hectorqin/reader](https://awesome-repositories.com/repository/hectorqin-reader.md) (11,095 ⭐) — Reader is a digital content reader and browser-based document viewer. It functions as a digital library manager and content aggregator that collects articles and documents from various online sources into a single interface.

The project utilizes a JSON-driven approach to organize and display hierarchies of digital documents. It incorporates a REST-based aggregation model to fetch reading materials and metadata from remote servers for a unified viewing experience.

The application provides client-side rendering for digital texts and manages personal collections through a digital library system
- [hakimel/reveal.js](https://awesome-repositories.com/repository/hakimel-reveal-js.md) (71,731 ⭐) — This project is a web-native presentation framework that renders slide decks from standard HTML or Markdown. It functions as a declarative slide engine, managing navigation, state persistence, and lifecycle events through a configuration-driven interface. By leveraging standard web technologies, it enables the creation of responsive, browser-based presentations that support complex layouts, nested transitions, and interactive content.

The framework distinguishes itself through a modular, plugin-based architecture that allows developers to extend core functionality using custom hooks and event
- [xcarpentier/rn-pdf-reader-js](https://awesome-repositories.com/repository/xcarpentier-rn-pdf-reader-js.md) (397 ⭐) — 📄 PDF reader in JavaScript only for Expo - Android & iOS capable
- [greenrobot/eventbus](https://awesome-repositories.com/repository/greenrobot-eventbus.md) (24,760 ⭐) — EventBus is a publish-subscribe messaging library designed to facilitate decoupled communication between components in Java applications. It functions as a central hub where producers dispatch events that are routed to subscribers based on the class type of the payload. By using annotation-based markers, the system maps event handlers to specific data types, allowing different parts of an application to exchange information without requiring direct references between classes.

The library distinguishes itself through a focus on performance and execution control. It utilizes a compile-time inde
- [iib0011/omni-tools](https://awesome-repositories.com/repository/iib0011-omni-tools.md) (9,710 ⭐) — omni-tools is a browser-based utility suite that provides client-side tools for manipulating PDFs, media files, and data formats. It functions as a collection of web-based processors and calculation engines that execute directly within the browser without requiring server-side processing.

The suite includes a client-side PDF editor for merging, splitting, and reorganizing document structures, and a web-based media processor for resizing, trimming, and converting image and video files. It also features a data format converter that transforms structured information between JSON, CSV, and XML fo
- [pdfme/pdfme](https://awesome-repositories.com/repository/pdfme-pdfme.md) (4,156 ⭐) — pdfme is a schema-based PDF generation engine and dynamic document builder. It provides a system for producing PDF documents by merging predefined templates with dynamic input data across different runtime environments.

The project includes a browser-based WYSIWYG PDF editor and template designer, allowing for the arrangement of elements via a drag-and-drop interface. It distinguishes itself through a plugin-based architecture that enables schema extensions and custom rendering logic for new content types.

The capability surface covers dynamic content generation, including variable placehold
- [formbricks/formbricks](https://awesome-repositories.com/repository/formbricks-formbricks.md) (12,391 ⭐) — Formbricks is an open-source survey and feedback platform designed to help teams capture and analyze user insights through targeted, in-app, and website-based interactions. It functions as a comprehensive customer experience analytics system that allows organizations to maintain full control over their data, user attributes, and survey workflows.

The platform distinguishes itself through its event-driven architecture, which enables precise behavioral targeting by triggering surveys based on specific user actions or application events. It supports deep integration with external ecosystems by a
- [open-source-flash/open-source-flash](https://awesome-repositories.com/repository/open-source-flash-open-source-flash.md) (7,320 ⭐) — This project is an open source specification petition platform and proprietary specification archive. It serves as a markdown-based repository for collecting signatures and community support to urge vendors to open source proprietary software specifications.

The platform functions as a tool for open source specification advocacy and proprietary software archival. It creates permanent records of proprietary standards and documents the community efforts required to transition them to open source licenses, ensuring the preservation of technical knowledge.

The system utilizes a git-driven contri
- [sismics/reader](https://awesome-repositories.com/repository/sismics-reader.md) (408 ⭐) — Free and open source feeds reader, including all major Google Reader features
- [stirling-tools/stirling-pdf](https://awesome-repositories.com/repository/stirling-tools-stirling-pdf.md) (81,109 ⭐) — Stirling-PDF is a self-hosted document processing suite designed for secure, private file management. It functions as a comprehensive transformation engine that executes complex operations—such as merging, splitting, converting, and redacting documents—directly on the host machine. The platform provides both a browser-based interface for interactive editing and a programmatic, API-first architecture that allows for the automation of document workflows through standard HTTP requests.

The project distinguishes itself through its focus on private, infrastructure-agnostic deployment and granular
- [helicone/helicone](https://awesome-repositories.com/repository/helicone-helicone.md) (5,830 ⭐) — Helicone is an AI gateway and observability platform designed to intercept, manage, and monitor interactions with large language models. By acting as a reverse-proxy, it provides a centralized layer for routing requests across multiple AI providers, allowing developers to maintain consistent application logic while gaining deep visibility into model performance, usage, and costs.

The platform distinguishes itself through a robust suite of traffic management and prompt engineering tools. It enables policy-driven control, including automatic failover between providers, rate limiting, and edge-b
- [atlassian/react-beautiful-dnd](https://awesome-repositories.com/repository/atlassian-react-beautiful-dnd.md) (34,049 ⭐) — This project is a declarative drag-and-drop library designed for building accessible and fluid interface interactions within web applications. It provides a component-based interface for managing complex list reordering and spatial relationships between elements, utilizing a specialized state container to coordinate movement logic.

The library distinguishes itself through a focus on accessibility, maintaining a live connection between visual drag states and the browser accessibility tree to support screen readers and keyboard navigation. It optimizes performance by bypassing standard componen
- [ellerbrock/open-source-badges](https://awesome-repositories.com/repository/ellerbrock-open-source-badges.md) (548 ⭐) — :octocat: Open Source & Licence Badges
- [py-pdf/pypdf2](https://awesome-repositories.com/repository/py-pdf-pypdf2.md) (10,094 ⭐) — 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
- [tapaswenipathak/open-source-programs](https://awesome-repositories.com/repository/tapaswenipathak-open-source-programs.md) (3,856 ⭐) — A list of open source programs.
- [chonkie-inc/chonkie](https://awesome-repositories.com/repository/chonkie-inc-chonkie.md) (4,170 ⭐) — Chonkie is a text chunking library designed for retrieval-augmented generation pipelines. It functions as a semantic text splitter and RAG ingestion pipeline, transforming raw text into embedded segments for storage in vector databases.

The project distinguishes itself through specialized splitting strategies, including an AST-based code splitter for preserving logical boundaries in source code and a semantic text splitter that uses embedding models to determine boundaries based on meaning. It also provides a vector database ingestor to automate the generation of embeddings and their export t
- [swift-open-source/ultratabsaver](https://awesome-repositories.com/repository/swift-open-source-ultratabsaver.md) (290 ⭐) — The open source Tab Manager Extension for Safari.
- [jina-ai/reader](https://awesome-repositories.com/repository/jina-ai-reader.md) (9,832 ⭐) — Reader is an AI data ingestion pipeline and web content parser designed to convert websites and documents into clean markdown for use with large language models. It functions as a headless browser content extractor and web-to-markdown converter, transforming URLs and PDF files into structured text formats while removing irrelevant web clutter.

The system optimizes retrieval augmented generation by acting as a search optimizer that retrieves web results and applies re-ranking to improve context relevance. It further enhances content accessibility by using vision models to generate descriptive
- [wkhtmltopdf/wkhtmltopdf](https://awesome-repositories.com/repository/wkhtmltopdf-wkhtmltopdf.md) (14,553 ⭐) — wkhtmltopdf is a command-line utility that renders web pages into PDF documents or image files. It functions as a headless browser engine, utilizing the Qt WebKit rendering environment to process HTML, CSS, and JavaScript into visual representations suitable for server-side tasks.

The tool distinguishes itself by translating standard web styling rules into physical page dimensions and layout constraints, allowing for the creation of structured documents from web-based source files. It supports the generation of automated tables of contents and provides granular control over document layout, i
- [gitbookio/gitbook](https://awesome-repositories.com/repository/gitbookio-gitbook.md) (28,902 ⭐) — Gitbook is a documentation-as-code platform designed for centralized technical knowledge management. It functions as a knowledge management system that synchronizes documentation files directly with version control repositories, allowing teams to maintain content alongside their source code.

The platform distinguishes itself through an integrated artificial intelligence layer that provides context-aware search assistance and automated content suggestions. By utilizing block-based content modeling, it enables the construction of structured, modular documentation that can be compiled into stati
- [jung-kurt/gofpdf](https://awesome-repositories.com/repository/jung-kurt-gofpdf.md) (4,468 ⭐) — This is a Go-based PDF library used for the programmatic generation of PDF documents without relying on external C dependencies. It functions as a document generator, layout engine, security tool, and vector graphics engine for creating files containing text, images, and geometric shapes.

The project distinguishes itself through a cell-based layout engine that manages automatic text wrapping, page breaks, and structured positioning. It provides specialized capabilities for vector graphics, including the rendering of Bézier curves and polygons, as well as a security toolkit for applying passwo
- [arpit456jain/open-source-programs](https://awesome-repositories.com/repository/arpit456jain-open-source-programs.md) (126 ⭐) — I am planning to list some good and beginner friendly open source programs and their timelines
- [librepdf/openpdf](https://awesome-repositories.com/repository/librepdf-openpdf.md) (4,293 ⭐) — OpenPDF is a Java library and document processor used for creating, editing, rendering, and encrypting PDF documents. It functions as a toolkit for generating new files from scratch, modifying existing document structures, and extracting text content.

The project includes a dedicated engine for transforming HTML and CSS content into PDF documents by parsing markup and applying styles. It also provides a rendering engine to convert PDF pages into image formats for thumbnails and previews, alongside a security utility for protecting content via document encryption.

The library supports the add
- [afonsopacifer/open-source-checklist](https://awesome-repositories.com/repository/afonsopacifer-open-source-checklist.md) (215 ⭐) — :octocat: A guide to help you remember important things when creating an open source project ;D
- [librum-reader/librum](https://awesome-repositories.com/repository/librum-reader-librum.md) (5,301 ⭐) — Librum is a cross-platform digital ebook reader and library manager designed to render multiple book formats. It functions as an integrated reading assistant and a system for organizing digital libraries across multiple devices.

The project distinguishes itself by providing a self-hosted backend option, allowing users to maintain full control over their book data and metadata via a private server. It also integrates a language model assistant to provide text summarization, explanations, and translations of specific passages while reading.

The application covers comprehensive library manageme
- [cockroachlabs/open-sourced-interview-process](https://awesome-repositories.com/repository/cockroachlabs-open-sourced-interview-process.md) (425 ⭐) — Open Sourced Interview Process
- [pymupdf/pymupdf](https://awesome-repositories.com/repository/pymupdf-pymupdf.md) (9,086 ⭐) — PyMuPDF is a comprehensive PDF manipulation library and document analysis tool. It serves as a text extraction tool, OCR engine, and image converter, providing a programmatic interface to edit, merge, split, and optimize PDF and Office documents.

The project distinguishes itself through high-performance capabilities, including the use of C-bindings for low-level manipulation and parallelized page processing to accelerate workloads. It provides specialized conversion paths, such as transforming PDF content into Markdown for retrieval-augmented generation and large language model pipelines.

It
- [dkhamsing/open-source-ios-apps](https://awesome-repositories.com/repository/dkhamsing-open-source-ios-apps.md) (50,744 ⭐) — This project is a comprehensive directory of open-source iOS applications designed to serve as a technical reference for developers and learners. It functions as a curated index of mobile software, categorizing projects by their functionality, implementation language, and architectural design to provide a clear view of how professional applications are structured.

The repository distinguishes itself by offering a deep dive into mobile app architecture, allowing users to study real-world codebases that utilize patterns such as Model-View-ViewModel, VIPER, and Clean Architecture. It highlights
- [pradumnasaraf/open-source-with-pradumna](https://awesome-repositories.com/repository/pradumnasaraf-open-source-with-pradumna.md) (833 ⭐) — Open Source guide - Contains resources and materials to learn and get yourself started with Open Source, Git, and GitHub.
- [amruthpillai/reactive-resume](https://awesome-repositories.com/repository/amruthpillai-reactive-resume.md) (38,613 ⭐) — This project is a web-based platform designed for creating, managing, and sharing professional resumes. It functions as a structured document builder that integrates artificial intelligence to assist with content generation, editing, and analysis. Users can maintain a collection of resumes, customize their visual presentation through various templates, and export them into multiple formats for job applications.

The platform distinguishes itself through its autonomous AI agent capabilities, which can perform research, suggest incremental edits, and apply data patches directly to documents. It
- [bitwarden/clients](https://awesome-repositories.com/repository/bitwarden-clients.md) (13,114 ⭐) — This project is a comprehensive zero-knowledge security suite designed for enterprise credential management, secrets orchestration, and password management. It provides a secure, end-to-end encrypted vault that allows users to store, synchronize, and manage sensitive information, including passwords, passkeys, and infrastructure secrets, across desktop, mobile, and browser environments.

The platform distinguishes itself through a strict zero-knowledge architecture where all encryption and decryption occur locally on the client, ensuring that plaintext data remains inaccessible to the server.
- [fffaraz/awesome-cpp](https://awesome-repositories.com/repository/fffaraz-awesome-cpp.md) (71,817 ⭐) — This project is a comprehensive, curated directory of high-quality libraries, tools, and educational resources for C and C++ development. It serves as an ecosystem discovery index, helping developers navigate the vast landscape of third-party components, frameworks, and technical documentation available for the language.

The collection is distinguished by its focus on high-performance systems programming and technical mastery. It provides deep coverage of specialized domains including SIMD-accelerated data processing, compile-time template metaprogramming, and asynchronous event-driven archit
- [wcoder/open-source-xamarin-apps](https://awesome-repositories.com/repository/wcoder-open-source-xamarin-apps.md) (465 ⭐) — A collaborative list of open source Xamarin & MAUI apps.
- [zalando/zalando-howto-open-source](https://awesome-repositories.com/repository/zalando-zalando-howto-open-source.md) (805 ⭐) — Open Source guidance from Zalando, Europe's largest online fashion platform
- [bitwarden/server](https://awesome-repositories.com/repository/bitwarden-server.md) (18,074 ⭐) — This project provides a comprehensive, self-hosted platform for zero-knowledge credential management and enterprise secrets orchestration. It functions as a secure vault that ensures all encryption and decryption processes occur exclusively on the client side, preventing the server from ever accessing plaintext data. By combining identity federation with robust access controls, the system enables organizations to centralize the management of passwords, passkeys, and sensitive infrastructure credentials.

The platform distinguishes itself through its focus on both human-centric security and aut
- [mstamy2/pypdf2](https://awesome-repositories.com/repository/mstamy2-pypdf2.md) (10,064 ⭐) — PyPDF2 is a pure Python library for reading, writing, and manipulating PDF files. It functions as a document manipulator, text extractor, and encryption tool, allowing users to process PDF files without relying on external C libraries or native binaries.

The library provides specialized tools for modifying document structures, such as merging multiple files into one, splitting documents into separate files, and transforming page layouts through cropping. It also includes capabilities for securing documents via passwords and encryption.

Additional capabilities include the extraction of writte
- [coder/code-server](https://awesome-repositories.com/repository/coder-code-server.md) (78,024 ⭐) — This project provides a remote development platform that enables users to access a full-featured integrated development environment through a standard web browser. By decoupling the user interface from the server-side filesystem, it allows for persistent coding workspaces to be hosted on remote servers, virtual machines, or cloud-native infrastructure, ensuring a consistent development experience from any device.

The platform distinguishes itself through a secure gateway architecture that manages traffic, authentication, and encryption at the edge. It utilizes persistent WebSocket connections
- [jsvine/pdfplumber](https://awesome-repositories.com/repository/jsvine-pdfplumber.md) (9,732 ⭐) — pdfplumber is a PDF data extraction library and layout analysis tool used to retrieve text, tables, and geometric objects from PDF files using precise coordinate-based analysis. It functions as a layout analyzer and table parser that identifies the bounding boxes and visual coordinates for every character and image on a page.

The library distinguishes itself through visual debugging capabilities, allowing users to render PDF pages as images and draw annotations to verify the position of extracted data. It employs line and intersection analysis to identify cell structures and convert unstructu
- [cfpb/open-source-project-template](https://awesome-repositories.com/repository/cfpb-open-source-project-template.md) (214 ⭐) — A project template containing default open source files for new projects
- [koodo-reader/koodo-reader](https://awesome-repositories.com/repository/koodo-reader-koodo-reader.md) (27,272 ⭐) — Koodo Reader is an open-source, cross-platform eBook reader designed for managing and studying digital documents. It functions as both a standalone desktop application and a self-hosted web environment, allowing users to organize their libraries and read across multiple devices.

The application distinguishes itself through integrated study and annotation tools that facilitate personal knowledge management, enabling users to highlight and extract insights from their documents. It supports a consistent reading experience by synchronizing progress and notes across platforms, while also providing
- [diegomura/react-pdf](https://awesome-repositories.com/repository/diegomura-react-pdf.md) (16,403 ⭐) — This library provides a rendering engine that translates declarative component trees into PDF files. It enables the construction of complex document structures using a component-based architecture, allowing developers to define layout, styling, and content programmatically. The system operates across both browser and server-side environments, offering a unified interface for generating structured documents.

The project distinguishes itself through a sophisticated layout and rendering pipeline that handles the complexities of document creation. It utilizes a flexbox-based engine for element po
- [py-pdf/pypdf](https://awesome-repositories.com/repository/py-pdf-pypdf.md) (9,818 ⭐) — pypdf is a Python library for parsing, manipulating, and generating PDF documents. It provides high-level operations for document processing, such as merging multiple files into one or splitting a single document into smaller files.

The project includes specialized tools for managing interactive elements, including the creation and modification of annotations, hyperlinks, and form fields. It also supports advanced metadata management, allowing for the extraction and modification of standard document properties and XML-based XMP metadata.

Beyond basic structural changes, the library covers pa
- [dragonflydb/dragonfly](https://awesome-repositories.com/repository/dragonflydb-dragonfly.md) (30,688 ⭐) — Dragonfly is a high-performance, multi-model in-memory data store designed to serve as a drop-in replacement for existing database infrastructures. By utilizing a multi-threaded, shared-nothing architecture and a fiber-based concurrency model, it maximizes CPU utilization and minimizes latency for read and write operations. The system supports a wide range of data structures, including strings, hashes, lists, sets, sorted sets, and JSON documents, while maintaining full compatibility with standard industry wire protocols and client libraries.

What distinguishes Dragonfly is its focus on effic
- [dimuthuupe/androidpdfviewer](https://awesome-repositories.com/repository/dimuthuupe-androidpdfviewer.md) (8,468 ⭐) — AndroidPdfViewer is a user interface library for Android applications that provides a view for displaying PDF documents. It utilizes the PdfiumAndroid rendering engine to decode PDF files into bitmaps for display on mobile devices.

The library includes built-in support for zooming, scaling, and scroll navigation. It allows for the loading of PDF data from various document sources and provides controls to adjust rendering quality and visual fidelity.

The component handles mobile document navigation through features such as page filtering, hyperlink detection, and customizable scroll handles.
- [zachflower/awesome-open-source-supporters](https://awesome-repositories.com/repository/zachflower-awesome-open-source-supporters.md) (681 ⭐) — ⭐️ A curated list of companies that offer their services for free to Open Source projects
- [barryvdh/laravel-dompdf](https://awesome-repositories.com/repository/barryvdh-laravel-dompdf.md) (7,270 ⭐) — This project is a Laravel integration for the Dompdf rendering engine, providing a tool to convert HTML and CSS templates into PDF documents. It functions as a wrapper that allows Laravel applications to generate downloadable or streamable PDF files from web-standard content.

The library includes specialized tools for producing PDF/A-3b compliant documents intended for long-term electronic preservation. This archival capability includes the ability to embed XML metadata and attachments, which supports electronic invoicing standards for digital business transactions.

The software covers a bro
- [mahmoud/awesome-python-applications](https://awesome-repositories.com/repository/mahmoud-awesome-python-applications.md) (17,892 ⭐) — This project is a curated directory and reference library of open-source Python applications. It serves as a comprehensive index designed to help developers study real-world software architecture, design patterns, and practical implementation strategies through a diverse collection of community-driven projects.

The repository distinguishes itself by focusing on the analysis of production-ready software patterns rather than providing a single tool. It offers a structured way to explore how complex features, such as modular plugin systems, configuration management, and various deployment strate