Squid: Take Notes, Markup PDFs

4.2
69.2K reviews
10M+
Downloads
Editors' Choice
Teacher Approved
Content rating
Everyone
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About this app

Transform your note-taking experience with Squid! For over 12 years, Squid has been a trusted app with over 12 million installs, helping users replace paper, save money, and reduce waste. Write just like you would on paper on your Android tablet, phone, or Chromebook!

Key Features:

✍️ Natural Writing: Seamlessly write with a pen and erase with your finger on active pen enabled devices like Samsung devices with S Pen. Use your finger or capacitive stylus on other devices.
⚡ Low Latency Ink: Enjoy a seamless and responsive writing experience with support for low latency ink¹.
🔒 Private: Notes are stored on your device and are completely private. No account or sign-in required. Backup your notes to your desired location.
📝 PDF Markup: Easily annotate PDFs, fill out forms, edit/grade papers, and sign documents.
🧰 Versatile Tools: Use any color pen or highlighter, import images, draw shapes, and add typed text.
📁 Organize: Select, copy/paste, and move content between pages and notes. Place notes in folders to stay organized.
📊 Presentations: Turn your device into a virtual whiteboard and cast your notes to a TV/projector.
📤 Export: Export notes as PDFs, images, or Squid Note format and share or store in the cloud.
💰 Save: Reduce stationery costs and replace paper notebooks with Squid for eco-friendly note-taking!

🏆 Awards/Recognition:

🌟 Featured App and Editors' Choice in Google Play
📈 Category Honorable Mention for Productivity in the Samsung Galaxy Note S Pen App Challenge
🎉 Popular Choice Award in the Dual Screen App Challenge

👑 Squid Premium:

• Premium paper backgrounds: math, engineering, music, sports, planning, & more
• Import and markup PDFs
• Additional tools: highlighter, true eraser, shapes, text
• Backup/restore and bulk export notes as PDFs to Google Drive, Dropbox, or Box

🛠️ Base Features:

• Vector graphics engine keeps your notes beautiful at any zoom level and on any device
• Various paper backgrounds (blank, ruled, graph) and sizes (infinite, letter, A4)
• Erase entire letters or words quickly with the stroke eraser
• Undo/redo, select, move, and resize
• Change color and weight of selected items
• Cut, copy, and paste items between notes
• Two-finger scroll, pinch-to-zoom, and double tap for quick zoom
• Sort and organize notes and folders
• Import, crop, and resize images
• Export notes to PDF, PNG, JPEG, or Squid Note format
• Share notes via email, Google Drive, Evernote, etc.
• Multi-Window support (take notes while watching a video)
• Shortcuts to create new notes or open folders
• Dark theme

🎓 Google Workspace for Education customers can purchase Squid Premium in bulk at https://squidnotes.com/edu

🐞 If you encounter any bugs, please email us at help@squid.app with a description.
💡 We would love to hear your feedback or feature requests at https://idea.squidnotes.com

¹Low latency ink is available now on Chromebooks and coming soon to Android devices.

🎯 Increase your productivity and unleash your creativity with digital handwritten notes. 👉 Try Squid for FREE today!
Updated on
Jun 18, 2025
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
You can request that data be deleted
Committed to follow the Play Families Policy

Ratings and reviews

4.0
33.4K reviews
A Google user
August 2, 2019
Squid is by far in the top 3 apps I use on a daily basis, even when accounting for both work and free time. I have a Note9, and Squid is where I learned to love using the s-pen. I use it for architectural free hand, and it has easy export/share. It's more than just a notation app. I tend to try an app and find it unsatisfying, and then look for a better one. Squid broke the cycle for it's category as far as I am concerned. Excellent work devs!
5 people found this review helpful
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Glenn R
August 3, 2022
Very nice app. Would be nice if the background could be changed to a different color when writing a note. If that is part of the premium pkg, then I understand. $10/yr just to change the background color? 🤔 May have to think about it. Would be nice if there was a 24hr trial period. Any chance for a dark theme in the future? Still a very good app.
1 person found this review helpful
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Steadfast Innovation, LLC
August 3, 2022
Hi there - Thank you for your review. We do reserve the premium backgrounds for subscribers, but there is a lot you can do in Squid completely free! We don't have a way to offer free trial, but if you make a purchase and are not satisfied, we'd be happy to refund you. Please contact us at help@squidnotes.com if you have any questions.
A Google user
November 16, 2019
I use Squid to write up and send contracts for my small business. It's perfect. I have zero complaints. Before this I was using Adobe Fill and Sign. That is, I was trying to use it. It was so glitchy I kept losing my documents and having to start over completely. I haven't had a single problem with Squid. And it does so much more than the Adobe app. Wish I'd found Squid sooner.
5 people found this review helpful
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What’s new

Squid is over 10 years old! We’ve been working hard on some big updates, which we've coined "Squid10". Squid10 is not yet fully featured and is available via opt-in to get your feedback and make improvements. Just tap "Try Squid10" and be sure to send us your feedback!

Latest Highlights
• Fixed issue with error reporting
• Miscellaneous under-the-hood fixes and improvements

Full changelog: http://goo.gl/EsAlNK