Browse free open source PDF Converters and projects for Windows below. Use the toggles on the left to filter open source PDF Converters by OS, license, language, programming language, and project status.

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  • 1
    Dompdf

    Dompdf

    HTML to PDF converter for PHP

    dompdf is an HTML to PDF converter. At its heart, dompdf is (mostly) a CSS 2.1 compliant HTML layout and rendering engine written in PHP. It is a style-driven renderer, it will download and read external stylesheets, inline style tags, and the style attributes of individual HTML elements. It also supports most presentational HTML attributes. PDF rendering is currently provided either by PDFLib or by a bundled version the R&OS CPDF class written by Wayne Munro. (Some important changes have been made to the R&OS class, however). In order to use PDFLib with dompdf, the PDFLib PECL extension is required. Using PDFLib improves performance and reduces the memory requirements of dompdf somewhat, while the R&OS CPDF class, though slightly slower, eliminates any dependencies on external PDF libraries.
    Downloads: 100 This Week
    Last Update:
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  • 2
    QuestPDF

    QuestPDF

    A library that can help you with generating PDF documents

    Quickly design and generate PDF documents with an open-source, modern, and battle-tested C# library. Forget about limitations, feel confident, enjoy your task and efficiently deliver professional products. QuestPDF is a progressive library that can help you with generating PDF documents in your .NET application by offering a friendly, discoverable and predictable C# fluent API. Do you believe that creating a complete invoice document can take less than 200 lines of code? We have prepared for you a step-by-step instruction that shows every detail of this implementation and describes the best patterns and practices. This library is created specifically for designing and arranging document layouts, with full paging support. Alternative solutions, such as HTML-based converters, are not designed for this purpose and therefore are often unpredictable and do not produce desired results.
    Downloads: 6 This Week
    Last Update:
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  • 3
    Gerber2PDF

    Gerber2PDF

    Gerber to PDF converter

    Gerber2PDF is a command-line tool to convert Gerber files to PDF for proofing and hobbyist printing purposes. It converts multiple Gerber files at once, placing the resulting layers each on it's own page within the PDF. Each layer has a PDF bookmark for easy reference. Layers can optionally be combined onto a single page and rendered with custom colours and transparency. There is a Drill to Gerber converter available from the downloads page.
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    Downloads: 24 This Week
    Last Update:
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  • 4
    Markdown to PDF

    Markdown to PDF

    Hackable CLI tool for converting Markdown files to PDF using Node.js

    A simple and hackable CLI tool for converting markdown to pdf. It uses Marked to convert markdown to HTML and Puppeteer (headless Chromium) to further convert the HTML to PDF. It also uses highlight.js for code highlighting. The whole source code of this tool is only ~250 lines of JS ~500 lines of Typescript and ~100 lines of CSS, so it is easy to clone and customize.
    Downloads: 4 This Week
    Last Update:
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  • 5
    Asciidoctor PDF

    Asciidoctor PDF

    Asciidoctor PDF: A native PDF converter for AsciiDoc

    A fast text processor & publishing toolchain for converting AsciiDoc to HTML5, DocBook & more. Asciidoctor is a fast, open source, Ruby-based text processor for parsing AsciiDoc® into a document model and converting it to output formats such as HTML 5, DocBook 5, manual pages, PDF, EPUB 3, and other formats. Asciidoctor also has an ecosystem of extensions, converters, build plugins, and tools to help you author and publish content written in AsciiDoc.
    Downloads: 2 This Week
    Last Update:
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  • 6
    borb

    borb

    borb is a library for reading, creating and manipulating PDF files

    borb is a library for creating and manipulating PDF files in python. borb is a pure python library to read, write, and manipulate PDF documents. It represents a PDF document as a JSON-like data structure of nested lists, dictionaries and primitives (numbers, string, booleans, etc) This is currently a one-man project, so the focus will always be to support those use-cases that are more common in favor of those that are rare.
    Downloads: 1 This Week
    Last Update:
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  • 7
    A Windows Graphical User Interface for XPdf and PdfToHtml Tools. An easy way to convert PDF files in simple text, jpeg, html and or extract images. It use xpdf (http://www.foolabs.com/xpdf/home.html) and pdftohtml
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    Downloads: 8 This Week
    Last Update:
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  • 8
    DJVU++

    DJVU++

    The DjVu complete solution,with OCR Technology(Arabic ,English).

    DjVu++ is a user-friendly program that used to manipulate DjVu file formats such as eBooks with a penalty of editing features. The program introduce a free replacement for the property PDF format with similar resolution and smaller file size DjVu++ also support OCR to handle text in scanned books and images. The program shows good performance for English. In addition to the Arabic language to lead free and commercial software in this area. The main features of DjVu++ program are: o Manipulate DjVu files. o Support smaller size than PDF with the same performance. o DjVu++ supports two languages in the OCR technique (Arabic and English). o Read multiple documents at the same time with the new tabs feature. o DjVu++ supports multiple formats:  Convert PDF document into DjVu format with smaller file size and the same performance.  Convert DjVu into PDF format.  Combine images to a single DjVu document. Perform OCR operations on multiple image formats.
    Downloads: 7 This Week
    Last Update:
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  • 9
    bridgex

    bridgex

    Convert files like docx, xlsx, pptx, html, and more to MarkDown

    Bridgex is an open‑source graphical interface for converting files to Markdown, built in Python and based on Pyside6 (Qt for Python). Its objective is to simplify access to the Markitdown library through a straightforward, modular visual experience. Features ✨ - Cross‑platform graphical interface. - Efficient file‑to‑Markdown conversion. - Modularity: easy to adapt and extend. - Support for multiple input formats. - Lightweight editing prior to saving. Supported Formats 📂 Bridgex supports conversion of the following file formats: - PDF (.pdf) - Word (.docx) - PowerPoint (.pptx) - Excel (.xlsx, .xls, .csv) - Outlook Messages (.msg) - Text (.txt, .text) - Markdown (.md, .markdown) - JSON (.json, .jsonl) - XML (.xml) - RSS/Atom (.rss, .atom) - HTML/MHTML (.html, .htm, .mhtml) - ePub (.epub) - Compressed files (.zip) - Jupyter Notebooks (.ipynb) - Other formats supported by Markitdown Bridgex is not an IDE, text editor, Markdown editor, or document viewer
    Downloads: 2 This Week
    Last Update:
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  • 10
    dompdf - the PHP 5 HTML to PDF converter. dompdf is a (mostly) CSS compliant HTML rendering engine written in PHP. It supports external stylesheets, inline style tags, and the style attributes of individual HTML elements. Requires PHP 5.
    Downloads: 2 This Week
    Last Update:
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  • 11

    toPDF

    Online service for PDF conversion (to PDF)

    A simple online service for PDF conversion. This project is a simple library and also a web application. It offers a REST service and a simple upload service for synchronous conversion. This library/application doesn't contain conversion libraries because it's a wrapper for existing tools. toPDF currently supports the open source tool PDF Creator (http://www.pdfforge.org) and the commercial solution, easy PDF, from BCL (http://www.pdfonline.com/easypdf/sdk/).
    Downloads: 1 This Week
    Last Update:
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  • 12
    Chordeus is yet another Chord Pro to PDF converter that creates nice looking guitar chord sheets. You can create single sheets or a whole songbook using the command line tool or a simple wizard-like GUI.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Docx2PDF The Converter [I.S,A]

    Docx2PDF The Converter [I.S,A]

    Docx-2-PDF: The Converter [Improved.Simplified.Alternative]

    Docx-2-PDF Converter' is an desktop application developed using python 3.11.4 and other add-on libaries. Converts image file into PDF file. 'Image 2 PDF Converter' has two modes: 1) Single file - Convert one word (.docx) file into pdf file. 2) From Directory/Folder - Convert word (.docx) files into pdf files from a directory or folder. Compatible only for windows OS.
    Downloads: 0 This Week
    Last Update:
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  • 14
    Free HTML to PDF for .NET and C# Library

    Free HTML to PDF for .NET and C# Library

    Free HTML to PDF Converter for C# .NET and ASP.NET MVC

    HiQPdf Library for C# .NET offers you a modern, simple, fast, flexible and powerful tool to create complex and stylish PDF documents in your applications with just a few lines of code. Using the high quality HTML to PDF conversion engine you can easily design a document in HTML with CSS3, JavaScript, SVG or Canvas and then convert it to PDF preserving the exact content and style.
    Downloads: 0 This Week
    Last Update:
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  • 15
    JPDF Export
    JPDF Export is a java library built on the famous iText library. It provides simple functions that can be used to build complex pdf files. It also provides simple classes to merge, split and convert pdf files
    Downloads: 0 This Week
    Last Update:
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  • 16

    PDF Comaprision JINI

    This project is forged to compare two PDFs

    This project is forged to compare two PDFs . IT uses following approach in compression 1 . Extract All text of both pdfs and compare them Page by Page 2. Extract all images from both PDF and save in folders and then compare them one by one and save difference in Difference Folder 3. Convert PDF 1 and 2 pages to JPG and compare them one by one
    Downloads: 0 This Week
    Last Update:
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  • 17
    PyExe: Cbz to pdf converter [I.S.A]

    PyExe: Cbz to pdf converter [I.S.A]

    PyExe: Cbz to pdf converter [Improved.Simplified.Alternative]

    Converts Comic book zip (.cbz) into PDF files. Compatible only for windows OS.
    Downloads: 0 This Week
    Last Update:
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  • 18
    Vertopal PHP

    Vertopal PHP

    PHP library for Vertopal file conversion API

    Vertopal PHP is a PHP library for easy access to Vertopal file conversion API. Using Vertopal PHP, you can get started quickly and easily implement the support of converting +350 file formats into your project.
    Downloads: 0 This Week
    Last Update:
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