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Split, merge, and interleave PDF pages on desktop

Windows PDF text editing with OCR and document export

PDF organization with text-based splitting and numbering

PDF conversion for Office, iWork, and ebook workflows

Tile and filter PDF sewing patterns before printing or projection

Online PDF forms, editing, and signature requests

PDF table conversion with editable row and column definitions

PDF remediation with automatic tagging and guided review

Create and automate PDFs on Windows

PDF content editing and organization on Windows and mobile

AI presentation maker that turns prompts or files into editable slides

Render, inspect, extract, and restructure PDFs from a terminal

Create and deliver documents from templates and connected data

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.

A teaching whiteboard with video calls, lesson materials, and PDF or image annotation.

Write with Apple Pencil in an Obsidian vault and keep handwritten pages beside Markdown notes.

A shareable infinite drawing board for handwriting, tutoring, diagrams, and PDF markup.

An open-source desktop notebook for stylus handwriting, PDF markup, layers, and audio notes.

Handwritten study notes, PDF markup, audio capture, and AI-assisted review for students.

Write and annotate handwritten notes on Android with page layouts, linked notes, and PDF tools.

A handwritten notebook for Apple Pencil notes, PDF markup, study tools, and creative pages.