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Start with a free PDF and add ongoing searches if needed

A cross-device notebook with folders, tags, linked notes, search, and offline synchronization.

AI social intelligence that tags posts and answers questions with cited mentions

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

A free prompt library with folders, tags, variables and version history.

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

Use a tagged timeline to record work and export time summaries.

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

Tag editing, file renaming and collection exports

Populate Word templates from JSON or spreadsheet records

Create and deliver documents from templates and connected data

Collect and export PDF highlights and annotations

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.