# PDF manipulation and management tool

> AI-ranked search results for `pdf open source` on awesome-repositories.com — ordered by an LLM for relevance, best match first. 115 total matches; showing the top 9.

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

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## Results

- [xournalpp/xournalpp](https://awesome-repositories.com/repository/xournalpp-xournalpp.md) (14,891 ⭐) — 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
- [mozilla/pdf.js](https://awesome-repositories.com/repository/mozilla-pdf-js.md) (53,454 ⭐) — 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
- [ahrm/sioyek](https://awesome-repositories.com/repository/ahrm-sioyek.md) (9,633 ⭐) — 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
- [onlyoffice/desktopeditors](https://awesome-repositories.com/repository/onlyoffice-desktopeditors.md) (4,448 ⭐) — 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-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
- [sumatrapdfreader/sumatrapdf](https://awesome-repositories.com/repository/sumatrapdfreader-sumatrapdf.md) (16,146 ⭐) — 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/pdfarranger](https://awesome-repositories.com/repository/pdfarranger-pdfarranger.md) (5,194 ⭐) — 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
- [shizukuichi/pdf-editor](https://awesome-repositories.com/repository/shizukuichi-pdf-editor.md) (1,854 ⭐) — 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
- [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