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Central S/MIME and PGP with an encrypted-PDF fallback

Adapt questions to earlier answers and filter survey results for sharing.

Research demand, compare search results and investigate site issues in one workspace.

Collect and export PDF highlights and annotations

Edit, convert, redact, and collect signatures on PDFs

Reflow PDFs and DjVu documents for smaller screens

AI math solver and tutor with step-by-step answers, PDF homework help, and study tools.

Note-taking app for handwriting, PDF annotation, and audio recording.

A Windows reader for PDFs, ebooks, and comics

Prepare imported 3D scenes for PDF, web, rendering and VR delivery

Social listening and content research for TikTok, Instagram Reels and YouTube Shorts.

Formula-driven apps built from spreadsheet-style logic