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
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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A Google user
December 11, 2018
Excellent app for capturing my handwriting! I use it on a Chromebook Pro, and it's even smoother than writing on paper. I'm able to easily organize my notes into notebooks, add pages to my notes, and even change whether I'm writing with notebook paper lines, graph paper, or plane white. And did I mention you can change the colors and thickness of the ink? Now, I'm not a fan of subscribing to things - the freemium version of Squid will do almost everything you need for notetaking, and I'm very happy with it. I did some in-app purchases for typing on the screen and adding shapes, and those have been worthwhile and affordable. --- Update: I now also have the app on my phone, and alas there is no way to sync the notes from my phone and my Chromebook. However, both my phone and Chromebook automatically backup my notes to Dropbox every day as PDF's, and it's easy to export the really important notes to specific folders in my Google Drive (and other online platforms) as needed. Plus you can't beat the control for line thickness, color, and page background. Granted, you get even better backgrounds (including daily planner) if you sign up for premium, and I can't afford that. But with a few in-app purchases you can get PDF and JPG import, which will them provide any background you could possibly want. I actually use the app to take photos and then draw sketches over the photos. Once the sketch is done, I copy the lines over to a plain white background, and voila - a nice cartoon image. Do if you're looking for a versatile and dependable notes app with automatic backup, I think this may be your best bet.
12 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