Showing 106 open source projects for "pdf metadata"

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  • 1
    Zotero PDF Translate

    Zotero PDF Translate

    Translate PDF, EPub, webpage, metadata, annotations, notes

    Zotero PDF Translate is a plugin for Zotero that enhances the research workflow by enabling in-app translation of PDFs, EPUBs, webpages, and associated metadata directly within the Zotero interface. It integrates seamlessly with Zotero’s document reader, allowing users to select text and instantly receive translations in a pop-up or side panel without leaving the application.
    Downloads: 50 This Week
    Last Update:
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  • 2
    OpenDataLoader PDF

    OpenDataLoader PDF

    PDF Parser for AI-ready data. Automate PDF accessibility

    OpenDataLoader PDF is an open-source document processing system designed to convert complex PDF files into structured, AI-ready formats such as Markdown, JSON, and HTML while preserving layout, hierarchy, and semantic meaning. It focuses on enabling downstream use cases like retrieval-augmented generation (RAG), knowledge extraction, and document intelligence pipelines by maintaining accurate reading order and spatial metadata through bounding boxes.
    Downloads: 2 This Week
    Last Update:
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  • 3
    PDF Signature

    PDF Signature

    Free web software for signing PDFs and also organize pages

    Free web software for signing, organizing, editing metadatas or compressing PDFs.
    Downloads: 1 This Week
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  • 4
    PDFCraft

    PDFCraft

    PDFCraft is a free, privacy-focused PDF toolkit

    PDFCraft is an extensible toolkit for creating, editing, and transforming PDF documents with both a graphical interface and a scripting API, making it useful for users ranging from casual editors to automated document processors. At its core, the project provides a clean, modern UI where you can rearrange pages, annotate text, insert images, fill forms, and export to multiple formats, all without needing a heavyweight commercial PDF suite.
    Downloads: 1,146 This Week
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  • 5
    PDFPatcher

    PDFPatcher

    A versatile toolkit for PDF manipulation

    ...Modify PDF metadata, page numbers, links, initial view mode, and remove open actions.
    Downloads: 27 This Week
    Last Update:
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  • 6
    PdfCraft

    PdfCraft

    An open-source, clean-room reimplementation of Adobe Acrobat in Rust

    ...PdfCraft includes password protection, encryption support, document metadata editing, and incremental saving that preserves original file data. The platform also provides command-line tools, a Rust API, and a Model Context Protocol (MCP) server for automating PDF operations and integrating with AI agents. Available for Windows, macOS, Linux, FreeBSD, and web browsers, PdfCraft operates locally without requiring an account, cloud processing, or telemetry.
    Downloads: 530 This Week
    Last Update:
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  • 7
    PyPDF

    PyPDF

    A pure-python PDF library capable of splitting, merging, cropping

    pypdf is a pure Python library for working with PDF files, allowing developers to split, merge, rotate, encrypt, and extract content from PDFs. It’s an actively maintained fork of PyPDF2, improving performance, compatibility, and support for modern PDF standards. Suitable for both automation scripts and full-featured applications, pypdf handles PDFs without requiring external dependencies.
    Downloads: 17 This Week
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  • 8
    MinerU

    MinerU

    A high-quality tool for convert PDF to Markdown and JSON

    MinerU is an open-source, high-quality document extraction toolkit focused on converting PDFs (and other document formats) into structured Markdown and JSON. It leverages OCR and layout analysis to preserve semantic structure and metadata, ideal for research and data science workflows.
    Downloads: 10 This Week
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  • 9
    pdfmake

    pdfmake

    Client/server side PDF printing in pure JavaScript

    ...Provides a set of options to disable font layout cache and to control when pages are flushed to the output file. Pdfmake is runnable in browser (client-side) and in Node.js (server-side). PDF name can be defined only by using metadata title property. Add-ons used in browsers can affect the functionality of pdfmake (especially for open() and print()). If pdfmake is not working try disable add-ons in browser. The supported browsers are Internet Explorer 10+, Edge 12+, Firefox, Chrome, Opera and Safari.
    Downloads: 8 This Week
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  • 10
    ExifCleaner

    ExifCleaner

    Desktop app to sweep away exif metadata from images and other files

    ExifCleaner is a cross-platform desktop app for cleaning metadata from images, videos, PDFs and other files. With ExifCleaner you can keep file sizes to a minimum and keep potential attackers from being able to use your GPS and device metadata.
    Downloads: 54 This Week
    Last Update:
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  • 11
    pandoc-crossref filter

    pandoc-crossref filter

    Pandoc filter for cross-references

    pandoc-crossref is a pandoc filter for numbering figures, equations, tables and cross-references to them. The input file (like demo.md) can be converted into HTML, LaTeX, PDF, Markdown or other formats. Optionally, you can use cleveref for LaTeX/PDF output, e.g. cleveref PDF, cleveref LaTeX, and listings package, e.g. listings PDF, listings LaTeX. This package tries to use LaTeX labels and references if output type is LaTeX. It also tries to supplement rudimentary LaTeX configuration that should mimic metadata configuration by setting header-includes variable. ...
    Downloads: 4 This Week
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  • 12
    Vanilla.PDF

    Vanilla.PDF

    Cross-platform SDK for creating and modifying PDF documents

    ...Vanilla.PDF supports advanced PDF features such as adding CMS (PKCS#7) digital signatures, modifying content streams and metadata, and working with encryption and permissions based on standard PDF security models. It includes tools for parsing PDF internals like cross-reference tables and objects, providing fine-grained document analysis capabilities. The project is unit-tested with continuous integration pipelines, supporting sanitizers for enhanced code quality and stability.
    Downloads: 0 This Week
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  • 13
    Komga

    Komga

    Media server for comics/mangas/BDs/magazines/eBooks with API and OPDS

    A media server for your comics, mangas, BDs, magazines, and eBooks. Organize your CBZ, CBR, PDF, and EPUB files in different libraries, collections, or reading lists. Use the integrated Webreader, the Tachiyomi extension, any OPDS reader, or other integrations.
    Downloads: 8 This Week
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  • 14
    GROBID

    GROBID

    A machine learning software for extracting information

    ...The extraction here covers the usual bibliographical information (e.g. title, abstract, authors, affiliations, keywords, etc.). References extraction and parsing from articles in PDF format, around .87 F1-score against on an independent PubMed Central set of 1943 PDF containing 90,125 references, and around .89 on a similar bioRxiv set of 2000 PDF (using the Deep Learning citation model). All the usual publication metadata are covered (including DOI, PMID, etc.).
    Downloads: 7 This Week
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  • 15
    Pandoc

    Pandoc

    The universal markup converter

    Pandoc is a universal document converter able to convert files from a multitude of markup formats into another. With Pandoc, you have a swiss-army knife of a converter, able to convert practically any markup format into any other. Pandoc contains a Haskell library for conversions as well as a command-line tool that uses this library. It can convert to and from just about anything-- lightweight markup formats, HTML formats, documentation formats, ebooks, TeX formats, word processor formats...
    Downloads: 202 This Week
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  • 16
    KOReader

    KOReader

    An ebook reader application supporting PDF, DjVu, EPUB, FB2, etc.

    KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux. Runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS. Multi-lingual user interface with a highly customizable reader view and many typesetting...
    Downloads: 169 This Week
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  • 17
    Kavita

    Kavita

    Kavita is a fast, feature rich, cross platform reading server

    ...Quickly resume your reading from your homepage, and get to your reading lists and collections. Serve up Manga/Webtoons/Comics (cbr, cbz, zip/rar, 7zip, raw images) and Books (epub, pdf). First-class responsive readers that work great on any device (phone, tablet, desktop). Dark mode and customizable theming support. Provide hooks into metadata providers to fetch metadata for Comics, Manga, and Books. Metadata should allow for collections, want-to-read integration from 3rd party services, genres. Ability to manage users, access, and ratings.
    Downloads: 7 This Week
    Last Update:
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  • 18
    pdfplumber

    pdfplumber

    Plumb a PDF for detailed information about each char, rectangle, line

    ...The library supports page cropping, object filtering, and visual debugging tools that display detected elements and table boundaries. It also provides access to PDF metadata and password-protected documents. A command-line interface exports page objects into structured CSV or JSON data. pdfplumber works best with digitally generated PDFs and is useful for document analysis, data extraction, and automated processing workflows.
    Downloads: 1 This Week
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  • 19
    Image Toolbox

    Image Toolbox

    Image Toolbox is an powerful picture editor, which can crop

    Image Toolbox is a powerful picture editor, which can crop, apply filters, add some drawings, erase background, edit EXIF, or even create a PDF file.
    Downloads: 52 This Week
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  • 20
    Calibre-Web

    Calibre-Web

    Web app for browsing, reading and downloading eBooks stored in Calibre

    ...User Interface in Brazilian, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Khmer, Polish, Russian, simplified and traditional Chinese, Spanish, Swedish, Turkish, Ukrainian. Filter and search by titles, authors, tags, series and language. Support for editing eBook metadata and deleting eBooks from Calibre library. Support for converting eBooks through Calibre binaries. Restrict eBook download to logged-in users. Support for public user registration. Send eBooks to Kindle devices with the click of a button. Support for reading eBooks directly in the browser (.txt, .epub, .pdf, .cbr, .cbt, .cbz, .djvu).
    Downloads: 13 This Week
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  • 21
    HDoujin Downloader

    HDoujin Downloader

    An easy-to-use manga and dōjinshi downloader supporting 800+ webistes

    HDoujin Downloader is a manga and dōjinshi download manager supporting 800+ websites across many different languages.
    Downloads: 29 This Week
    Last Update:
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  • 22
    PaperQA2

    PaperQA2

    High accuracy RAG for answering questions from scientific documents

    PaperQA2 is a package for doing high-accuracy retrieval augmented generation (RAG) on PDFs or text files, with a focus on the scientific literature. See our recent 2024 paper to see examples of PaperQA2's superhuman performance in scientific tasks like question answering, summarization, and contradiction detection. In this example we take a folder of research paper PDFs, magically get their metadata - including citation counts and a retraction check, then parse and cache PDFs into a...
    Downloads: 2 This Week
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  • 23
    kb

    kb

    A minimalist command line knowledge base manager

    kb is a minimalist command-line knowledge base manager that gives users a fast, organized way to collect, store, search, and retrieve notes, documents, cheatsheets, procedures, and other artifacts directly from the terminal. It was created to solve the common problem of having scattered text files or reference materials on disk that are hard to search or categorize, and it surfaces a simple CLI interface with intuitive commands for adding, viewing, editing, and deleting knowledge items. Each...
    Downloads: 20 This Week
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  • 24
    shuyuan

    shuyuan

    Reading book source

    ...It likely supports different input formats (text, HTML, PDF), and may integrate optional translation or text normalization tools.
    Downloads: 2 This Week
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  • 25
    PDF Toolbox for Windows

    PDF Toolbox for Windows

    Merge, split, organize and convert PDF copies offline on Windows

    PDF Toolbox is a free, MIT-licensed offline Windows application by ALMARFELD. Merge, split, extract, rotate and organize PDF pages; convert JPG/PNG/BMP to PDF or PDF pages to PNG/JPEG; edit document metadata in a copy; add watermarks and page numbers. Protect with PDF AES-128 or unlock with valid credentials. Lossless compression saves only smaller results.
    Downloads: 7 This Week
    Last Update:
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