PDF ​

pdfcpu is great Go lib to parse PDFs. React PDF REPL is interesting.

ChatGPT is great.

Notes ​

• If you can't copy text in PDF, it's locked. Can open it in Chrome > Print > Save. Can then copy text freely.

Links ​

• pdf-diff - PDF comparison utility in Python.
• Caradoc - Parser and validator of PDF files written in OCaml.
• pdfsandwich - Tool to make "sandwich" OCR pdf files. (HN)
• Markdown to PDF - Will take a markdown file as input and then create a PDF file with the markdown formatting.
• PDF Reader in Go
• lopdf - Rust library for PDF document manipulation. (Breakdown Of How Lopdf Reads PDFs)
• pdf_render - Experimental PDF viewer.
• pdf-rs - Read, alter and write PDF files.
• PEP - Open Source & Free PDF Editor for Mac. (Code)
• Make any PDF look like scanned (Code) (CLI)
• TPPDF - Fast PDF builder for iOS & macOS using simple commands to create advanced documents.
• PDF-Lib - Create and modify PDF documents in any JavaScript environment. (Docs)
• PDF to CSV converter
• pikepdf - Python library for reading and writing PDF files.
• pdf2svg - Simple PDF to SVG converter using the Poppler and Cairo libraries.
• CamlPDF - OCaml library for reading, writing and modifying PDF files.
• cpdf-binaries - PDF Command Line Tools binaries.
• pdfannots - Extracts and formats text annotations from a PDF file.
• Processing PDFs with Cloud Functions (2020)
• pystitcher - Stitches your PDF files together, generating nice customizable bookmarks for you using a declarative input in the form of a markdown file. (HN)
• QPDF - Command-line tool and C++ library that performs content-preserving transformations on PDF files.
• qpdf-rs - Rust bindings for QPDF C++ library.
• pdfc - PDF compiler for your source code.
• labelmake - Declarative style PDF generation library for Node and the browser.
• Reducing the size of large PDFs (2022) (HN)
• Purdy - Experimental PDF renderer built on top of WebGPU.
• pdftotext - Simple PDF text extraction.
• iLovePDF - Online PDF tools for PDF lovers.
• PDFRip - Fast PDF password cracking utility equipped with commonly encountered password format builders and dictionary attacks.
• ZotFile - Advanced PDF management for Zotero.
• pdfmake - PDF document generation library for server-side and client-side in pure JavaScript.
• x-ray - Python library for finding bad redactions in PDF documents.
• svg2pdf.js - JavaScript-only SVG to PDF conversion utility that runs in the browser leveraging jsPDF.
• PDFMiner.six - Tool for extracting information from PDF documents.
• Keypoints - Annotate PDFs in Markdown.
• Excalibur - PDF Table Extraction for Humans. (Code)
• Tabula - Extract Tables from PDFs. (Code) (HN)
• SlidePilot - PDF Presentation Tool for macOS. (Code)
• giopdf - PDF viewer library for Gio.
• PDFME - TypeScript based PDF generator library, made with React. (Docs)
• PSPDFKit API - Generate, convert, and modify PDF documents. (HN)
• react-pdf-highlighter - React library that provides annotation experience for PDF documents on web.
• WASM-PDF - Generate PDF files with JavaScript and WASM.
• PDFIO - PDF Reader Library for Native Julia.
• gopdf - Simple library for generating PDF written in Go.
• Local PDF Tools - Merge, Optimize, Extract PDFs in your Browser. (Code)
• pdfboxing - Clojure PDF manipulation library & wrapper for PDFBox.
• PDFKit - JavaScript PDF generation library for Node and the browser.
• Express PDF Generator Service
• PDF::Reader - Implements a PDF parser conforming as much as possible to the PDF specification from Adobe.
• PyPDF2 - Pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files.
• Look Scanned - Make your PDFs look scanned. (Code)
• Ask HN: Why is the PDF format so inaccessible? (2022)
• pdfreader - Read text and parse tables from PDF files.
• pdfsandwich - OCR your PDF fast. (Reddit)
• Converts PDFs to dark mode (Code)
• Scholar Reader - User interface, API, and data processing scripts for an augmented PDF reader application.
• Pdfmake-wrapper - Generate PDF documents in an easy and readable way.
• Let's write a PDF file (2015)
• wkhtmltopdf - Convert HTML to PDF using Webkit (QtWebKit).
• img2pdf - Losslessly convert raster images to PDF.
• Boxes and Glue - PDF typesetting library/backend in the spirit of TeX's algorithms.
• TinyWow - Free PDF, Video, Image & Other Online Tools.
• s3-ocr: Extract text from PDF files stored in an S3 bucket (2022)
• Search PDFs with Transformers and Python Notebook (HN)
• PDF-Diff - Tool for visualizing differences between two PDF files. (HN)
• Generate an Invoice PDF using Cloudflare Workers (Code)
• Ask HN: How do you organize or rename PDF files (books, papers, etc)? (2022)
• Extract structured data from PDF invoices
• PDF Grep - Command line utility to search text in PDF files. (HN) (Code)
• WeasyPrint - Turns simple HTML pages into gorgeous statistical reports, invoices, tickets as PDFs.
• lazypress - Convert HTML pages to PDFs looking just like they would render in the browser.
• PDF processing and analysis with open-source tools (2021) (HN)
• How To Create a PDF in Go: A Step-By-Step Tutorial (Reddit)
• go-audio - Offline solution to convert PDFs into audiobooks.
• bagme - PDF rendering library for Go using boxes and glue.
• PDFSyntax - Python PDF parsing library and tool built on top to browse the internal structure of a PDF file. (HN)
• PDF storage with global search
• Hammer PDF - Smart Scientific Reader. (Code)
• Open PDF Sign - Digitally sign PDF files from your command line. (HN)
• pdfcpu - PDF processor written in Go. (HN)
• pdfium-render - Idiomatic high-level Rust interface to Pdfium. Used by Google Chromium.
• PDF.js extract - Extracts text from PDF files.
• Simple PDF Embed - Add a powerful PDF editor directly into your website or React App.
• PDF to Image - Converts PDFs to images in Node with no native dependencies.
• SVG 2 PDF - Converts SVG files to PDF.
• PDF Writer - Step-by-step PDF writer.
• React PDF REPL (Code)
• jendeley - JSON-based PDF paper organizing software.
• PDF Extract - Rust library for extracting content from PDFs.
• pdf-extract - Rust library to extract content from PDF files.
• GPT-4 & LangChain - Create a ChatGPT Chatbot for Your PDF Docs
• Ask Your PDF - Upload, chat and interact with any PDF document. (HN)
• PDF 2.0 specification (Reddit)
• Maroto - Maroto way to create PDFs.
• ChatPDF - Chat with any PDF.
• pdfGPT - Chat with the contents of your PDF file by using GPT capabilities.
• vortex - Tool to extract images from PDF files.
• PDF Annotation Fixer - Fixes macOS Preview garbled annotations.
• PDFEasy - JavaScript Client/Server Side PDF-Generator based in PDFKit.
• ScholarTurbo - Use ChatGPT to chat with PDFs (supports GPT-4). (HN)
• Book Builder - Turns markdown into PDF.
• MultiPDF Chat App - Langchain app that allows you to chat with multiple PDFs.
• PDF GPT Indexer - Build Personal ChatGPT Using Your Data. (HN)
• peepdf - Python tool to analyze PDF documents.
• PDF Sign - Tool to sign PDF files.
• unpdf - Utilities to work with PDFs, like extracting text.
• PDF Tool - Modify PDFs in the browser without uploading. (HN)
• PDF.js Serverless - Serverless build of PDF.js for Deno, workers, and more.