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Change PDF paper size, image resolution, margins, and page layout

Compare text, structured files and Word documents

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.

Translate LaTeX into structured XML and web publications

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 editing with interactive forms and digital signatures

Repair PDF tags, tables, and logical reading structure

PDF editing and OCR for Windows and Mac

Batch PDF export to office files, text, and images

PDF editing and detailed splitting options online

Free PDF editing, OCR, and conversion across devices

PDF assembly through graphical and command-line tools

Command-line PDF validation, page layout, and resource tools

PDF tagging, manual repair, and built-in validation

Convert structured data with reusable field and layout settings

PDF editing with desktop, online, and scanner apps

Create PDFs from Windows printing and Office add-ins

A consolidated PDF processing and conversion catalogue

A multi-format notebook for handwriting, PDFs, voice notes, and study documents.

A visual knowledge notebook for connecting research, highlights, and ideas on whiteboards.

An open-source iPad notebook for Apple Pencil writing and PDF markup.