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An open-source desktop PDF toolkit with inspection and CLI tools

Edit and convert PDFs with OCR and batch tools

Measure and identify O-rings from phone photos

Turn reusable HTML or visual templates and JSON data into generated PDF documents.

Online PDF conversion with a Windows OCR companion

Write with a stylus in flexible notebooks that can also hold and annotate PDFs.

A shared whiteboard for browser and Webex collaboration with PDF export.

A browser-based shared math canvas for handwriting, graphs, sliders, and PDF assignments.

A LaTeX source editor with command completion, error analysis and an integrated PDF viewer.

Build an itemized invoice and download its PDF

An Android-first notebook for handwriting, PDF markup, voice notes, and optional web sync.

A browser-installed notebook for handwriting, PDF markup, and recorded lectures that works offline.

A cross-platform teaching whiteboard with Apple Pencil input, PDF import, pages, and an infinite canvas.

AI form filler that reads PDF and Word forms and fills them from your own data.

Chrome extension that saves ChatGPT conversations as PDF, Markdown, Text, CSV, JSON, or Image files.

AI-powered PDF editor, converter and reader for web, mobile and desktop

PDF-to-spreadsheet conversion with layout and OCR tools

Batch PDF-to-Word conversion through a simple upload queue

Online document conversion with PDF compatibility controls

PDF preflight and correction through profiles and process plans

PDF presentation with notes and media on two screens

Print to PDF with automatic naming and batch options

Add searchable text to scanned PDF documents

Java PDF assembly, booklet layout, and metadata tools