Open-source alternatives to Pdf Editor

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

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

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

python-docx is an OOXML document manipulation library used for creating, reading, and updating Microsoft Word files. It functions as a generator for building formatted documents and a parser for extracting text, metadata, and structural elements from existing files. The project provides a comprehensive style management system for defining and applying character, paragraph, and table styles within OpenXML documents. It allows for the programmatic control of document appearance through an object-oriented approach to the underlying XML schema. Capabilities cover a wide range of document generat

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

Pdfcraft is a containerized service for self-managed PDF processing, editing, and conversion. It provides a toolkit for document manipulation, a multi-format converter, and OCR software to transform scanned documents into searchable and editable text. The project features a visual, node-based workflow editor that allows users to build automated pipelines by chaining together various PDF conversion and optimization operations. The service covers a broad range of capabilities, including document management for merging and splitting files, format conversion between PDFs and office documents or

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

Cherry Markdown is a web-based Markdown editor and parsing engine that converts markup text into sanitized HTML with a real-time synchronized preview pane. It functions as a rich text interface and WYSIWYG tool, providing a system for transforming markup strings into HTML documents or portable formats. The project distinguishes itself through high-performance rendering and a flexible extensibility model. It uses virtual DOM diffing and partial rendering to maintain responsiveness in large documents, and it allows for the creation of custom parsing rules and specialized HTML components via a p

pdfsam is a PDF manipulation software and desktop application designed for splitting, merging, rotating, and extracting pages from PDF documents. It functions as a PDF editor, converter, and security tool, providing capabilities to modify document structures and manage file formats. The project distinguishes itself through specialized processing capabilities, including an OCR document processor for extracting editable text from scanned images and PDF interleaving to alternate pages from multiple files. It also provides a security suite for encrypting documents, managing access permissions, an

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

Documenso is a self-hosted electronic signature platform designed to manage the creation, distribution, and execution of legally binding documents. It provides a centralized system for collecting digital signatures and tracking the status of agreements through a structured interface. The platform distinguishes itself by offering a programmatic interface that allows developers to embed document signing workflows directly into external web applications. This capability enables the automation of document processing tasks, allowing users to trigger signature requests and manage document lifecycle

Docuseal is an open-source digital signature platform designed for self-hosted document management and automated signing workflows. It provides a visual builder for creating fillable PDF forms and tools for orchestrating multi-party signing processes, allowing organizations to maintain full control over their data and infrastructure. The platform distinguishes itself through its focus on integration and extensibility. It offers a programmatic interface for automating document lifecycles and provides embedded components that allow developers to inject signing interfaces directly into their own

Medium.js is a JavaScript rich text editor library and framework for building what-you-see-is-what-you-get editors. It acts as a lightweight wrapper for the browser contenteditable API, transforming standard elements into styled editors that support rich text formatting and semantic HTML output. The library functions as an HTML content sanitizer, stripping unwanted tags and attributes from typed or pasted content to maintain clean markup. It provides a system for implementing custom keyboard interactions and mapping shortcuts to trigger styling changes or element insertion. The framework cov

This project is a web-based Markdown profile builder designed to create professional landing pages for GitHub accounts. It functions as a profile README generator that collects user details and professional statistics to produce formatted Markdown code for showcasing technical skills and achievements. The tool distinguishes itself by integrating live data cards, such as contribution metrics and visitor counters, and providing an RSS feed embedder for automated blog syndication. It also automates the setup process by importing public user information and suggesting relevant skills based on a G

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 web-based document formatting tool designed to generate professional resumes from structured markdown files. It functions as a static site utility that allows users to manage their professional profiles through plain text, ensuring content remains portable and compatible with version control systems. The tool distinguishes itself by performing all document rendering and data processing entirely within the browser. By utilizing a component-driven layout engine, it transforms markdown input into formatted documents in real time without the need for a backend server. Users can

This project is a framework for building real-time collaborative rich-text editing environments. It provides a structured, schema-based engine that enforces document integrity while allowing multiple users to modify content simultaneously through synchronized state management and conflict resolution protocols. The editor distinguishes itself through a highly modular plugin architecture that supports the integration of complex, interactive UI components built with external frontend libraries. By utilizing a custom rendering engine and a versioned, immutable document state tree, it enables deve

signature_pad is a JavaScript library and drawing tool for capturing handwritten digital signatures on an HTML5 canvas. It provides a handwriting capture interface that transforms raw mouse or touch inputs into smooth, professional-looking lines. The project uses Bézier curve interpolation to smooth jagged input points into fluid strokes. It supports the configuration of drawing aesthetics, including pen color, background color, and line width, and includes a history management system for undoing and restoring drawing actions. The library handles the serialization of signature data into poin

ContentTools is a JavaScript framework and suite of tools for building visual WYSIWYG editors. It provides a DOM manipulation library for parsing and transforming HTML strings into structured editable regions, alongside a visual document orchestrator that manages element behaviors and state transitions. The framework includes a specialized browser selection manager to ensure consistent caret positioning and text range highlighting across different web browsers. It also features an HTML content validator used to sanitize output and convert third-party media links into valid embed formats. The

jsPDF is a JavaScript PDF generation library and client-side engine that produces documents directly on the user's device. It provides a scriptable interface for creating PDF files within web browsers and other JavaScript runtime environments without requiring a backend server. The library includes a tool for defining document dimensions, orientation, and measurement units to control page layout. It also functions as a Unicode font integrator, allowing for the embedding of custom font files to support diverse languages and special characters. Capability areas cover dynamic document automatio

OpenSign is a self-hosted, open-source document signing platform that enables users to send, sign, and manage PDF documents with digital certificates and encryption. It functions as a complete e-signature solution, allowing organizations to run their own signing service on private infrastructure while maintaining full control over their data and document workflows. The platform supports sequential multi-signer workflows, where documents can be sent to multiple recipients in a predefined order, with each signer receiving an email-based one-time password for verification before accessing the do

LibreraReader is a multi-format e-book reader and digital library manager designed for mobile and desktop devices. It functions as a customizable document renderer and a text-to-speech document player that converts written text into spoken audio via a configurable speech engine and integrated media player. The project distinguishes itself through a high degree of visual and functional customization, including the ability to inject custom CSS for styling overrides and the use of pluggable rendering engines to balance speed and stability. It includes specialized navigation tools such as a verti

This project is a rich text editor component for React applications that provides a visual interface for composing and formatting content. It functions as a DraftJS-based WYSIWYG editor, allowing users to create structured documents with inline styles and block types. The editor features a customizable toolbar interface for managing text alignment, lists, and media embeds. It includes a specialized input system for inserting emojis, hashtags, and user mentions as single deletable units. The project provides capabilities for transforming internal editor state into HTML, JSON, or Markdown form

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

Trumbowyg is a lightweight JavaScript WYSIWYG editor used to create and format rich-text and HTML content directly within a web browser. It serves as a client-side tool for generating semantic HTML markup and authoring web content. The project features a modular, plugin-based architecture that allows for the addition of new formatting commands and toolbar buttons. It provides a configurable interface where the toolbar layout can be customized via a predefined array and labels can be translated through localization files. The editor covers a wide range of content manipulation capabilities, in

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

Bananas is a peer-to-peer screen sharing application that uses WebRTC to establish direct browser-to-browser connections, enabling real-time screen sharing without routing data through a central server. The application assigns ephemeral identity tokens tied only to session IDs, eliminating the need for user accounts or persistent login systems, and generates unique alphanumeric session URLs for one-click joining. The application distinguishes itself through collaborative multi-cursor overlays, where each participant's cursor is rendered as an HTML5 Canvas layer composited over the shared scre