Squid: Take Notes, Markup PDFs on Android

Squid: Take Notes, Markup PDFs — A Trusted Way to Write Digitally

Squid from Steadfast Innovation, LLC is the long-standing note-taking companion that transforms how professionals capture ideas on Android devices. For over 12 years and with more than 12 million installs, Squid has earned a reputation for reliability and clarity.

Core Capabilities

• Natural handwriting experience — Write just like you would on paper, using your finger or a stylus on Android tablets, phones, or Chromebooks.
• PDF annotation — Mark up, highlight, and comment directly on PDFs without switching apps.
• Paperless benefits — Reduce costs, save space, and cut waste by going digital while preserving the tactile feel you love.
• Cross-device flexibility — Start on one device and pick up on another, seamlessly (tablet, phone, Chromebook).
• Trust and scale — Decades of user trust and millions of installations underscore its stability.

Why professionals choose Squid

• Efficiency — Convert thoughts into fast, legible notes that are easy to organize and search.
• Clarity — High-precision ink with reliable input handling improves legibility for meetings and reviews.
• Collaboration-ready — Share notes and annotated PDFs with colleagues to streamline feedback loops.

Getting Started

1. Download Squid from Google Play.
2. Open the app on your Android tablet, phone, or Chromebook.
3. Start writing with a stylus or your finger and annotate PDFs as needed.
4. Save, export, or share your notes to keep work moving.

Why download now

Squid is a trusted, proven solution for teams and individuals who value a natural handwriting experience, reliable PDF markup, and a real paperless workflow. With a 12+ year track record and millions of installs, it’s a safe, scalable choice for professional note-taking.

Developer: Steadfast Innovation, LLC | License: Free