PDF manipulation and management tool

Xournalpp is a digital note-taking and annotation application designed for capturing natural handwriting and sketching. It functions as a vector graphics editor that treats individual strokes, shapes, and text as discrete, editable objects, allowing users to refine and manipulate their work after it has been placed on the canvas. The application provides a specialized environment for overlaying handwritten notes and drawings onto existing PDF documents. By utilizing pressure-sensitive stylus input, it simulates a natural writing experience, while its layered canvas composition enables users t

This project is a portable document rendering engine designed to parse and display complex document layouts directly within standard web browser environments. It functions as a web-native viewer that enables the presentation of documents without requiring external software or browser plugins. The engine utilizes a canvas-based rendering layer to map document page data onto standard web drawing surfaces, ensuring high-fidelity visual output. To maintain interface responsiveness, it offloads heavy parsing and object extraction tasks to background threads. The system also employs asynchronous by

Sioyek is a PDF viewer and academic document navigator designed for reading research papers, textbooks, and technical documents. It focuses on enabling users to jump between references, figures, and bibliographies, even in documents that lack embedded hyperlinks. The software distinguishes itself through deep LaTeX integration, allowing for synchronized navigation between source code and rendered PDF output. It is highly customizable, featuring programmable keybindings and the ability to extend its functionality via external scripts for tasks such as translation or text recognition. The view

DesktopEditors is an office suite application designed for creating and editing text documents, spreadsheets, and presentations across different operating systems. It serves as an OOXML compatible editor, ensuring that files are read and written according to Office Open XML standards for cross-platform document exchange. The suite functions as a collaborative document platform featuring real-time co-authoring, version tracking, and integrated communication tools. It also acts as an AI-powered document assistant and PDF editor, providing capabilities for content generation, automated spreadshe

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

SumatraPDF is a lightweight, multi-format document viewer designed for rendering PDF, eBook, and comic book files within a unified interface. It functions as both a graphical reading environment and a command-line document processor, enabling users to automate file conversion, merging, and extraction tasks without requiring a graphical interface. The application distinguishes itself through a single-executable binary distribution that utilizes direct-to-GDI rendering and memory-mapped file access to maintain high performance and minimal memory overhead. Users can personalize their workspace b

Pdfarranger is a PDF page organizer, document editor, image converter, and booklet generator. It provides a visual drag-and-drop interface to reorder, merge, split, and delete pages within PDF documents. The application includes specialized tools for creating booklet printing layouts and converting image files into PDF pages or exporting PDF pages as PNG and JPEG images. It allows for the modification of document metadata while preserving internal outlines and hyperlinks. The software covers a range of structural manipulations, including page rotation, resizing, cropping, and overlaying. It

This project is a browser-based PDF editor that allows users to modify documents by inserting and repositioning text, images, and signatures. It functions as a client-side document editor, enabling the rendering, editing, and saving of files entirely within the user's browser environment. By processing all binary data locally, the application ensures that documents are never uploaded to a remote server, maintaining data privacy throughout the editing workflow. The tool utilizes an object-oriented model to manage individual elements, allowing for independent manipulation and transformation of

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

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

React-pdf is a library of components designed to integrate document viewing and interaction into web applications. It provides a standardized interface for parsing and displaying portable document format files directly within a browser environment, supporting input from local files, remote web addresses, and encoded data strings. The library renders document content onto HTML5 canvas elements to ensure consistent visual display across browsers. To maintain interface responsiveness during document processing, it offloads parsing tasks to background threads. It also implements a layered approac

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.