PDFBeads is a small utility written in Ruby which takes scanned page images and converts them into a single PDF file. Unlike other PDF creation tools, PDFBeads attempts to implement the approach typically used for DjVu books. Its key feature is separating scanned text (typically black, but indexed images with a small number of colors are also accepted) from halftone pictures. Each type of graphical data is encoded into its own layer with a specific compression method and resolution.

PDFCraft adds templated rendering of PDF documents to Rails. Now PDF generation of a resource can work just like HTML, XML builders, or JSON.

Edits Pdf's

A command line utility for extracting annotation and field metadata from a PDF in JSON format.

OCR is a Ruby gem that allows you to easily extract text from image files (JPG, PNG, PDF) using Tesseract OCR engine. It provides a simple, intuitive interface for integrating OCR capabilities into your Ruby or Rails applications.

Counts the pages in single and multiple PDFs. Capable of recursively finding PDFs in directories.

Extract all images with format conversions based upon Pdf::Reader library

PDF::Reader extension to find text in PDF and get the page and position

A markup extension for the PDF::Reader library

Combine multiple pdf files into a single file with combined table of content for quick navigation

Run in any directory containing pdfs using `$ pdf_search (optional: %folder name%)`

Extracts tables from PDF text using spacing and position heuristics.

Parsing PDF files to the CSV format

Attempt to detect the region of a PDF page indicated by trim marks

pikuri-core is the lean, audit-friendly foundation of the pikuri family: Pikuri::Agent (a thin wrapper around ruby_llm's chat loop) with its Configurator + Extension protocol, the strict Pikuri::Tool framework, a listener surface for rendering / budgets / sub-agents, and four bundled stateless tools (calculator, web search, web scrape, fetch). Extensions (skills, MCP, workspace, coding stack, named-agent personas) live in sibling gems so a privacy-conscious user can install just this core and audit a minimal dependency tree. For the convenience bundle that pulls in everything, see the +pikuri+ metagem.

Add PDF 'images' as images in prawn documents

Probatio Diabolica runs custom *_spec.rb files with a DSL inspired by RSpec and supports text/image/PDF reporting.

PuppeteerEntity provides a simple and intuitive interface for interacting with Puppeteer, a headless Chrome browser.

Set of small and standalone utilities in Ruby.

Under development. Contributors welcome.