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About Squid - Take Notes & Markup PDFs

New: We partnered with Google to bring incredibly fast, low-latency ink to Squid on the Google Pixelbook and Samsung Chromebook Plus (with Chrome 62). See the difference: https://youtu.be/Oc66T_e7xwU

Take handwritten notes naturally on your Android tablet, phone, or Chromebook supporting Android apps! With Squid you can write just like you would on paper using an active pen, passive stylus, or your finger.

Easily markup PDFs to fill out forms, edit/grade papers, or sign documents. Import images, draw shapes, and add typed text to your notes. Quickly select, copy/paste, and move content between pages and notes. Organize your notes within notebooks and increase your productivity!

Turn your device into a virtual whiteboard or give presentations in a class, meeting, or conference by wirelessly casting to a TV/projector (e.g. using Miracast, Chromecast). Export notes as PDFs or images, then share them with others or store them in the cloud!

Squid is vector based - keeping your notes beautiful at any zoom level and on any device. You can erase entire letters and words quickly with the stroke eraser tool, or just parts of words with the true eraser tool. The selection tool allows you to change the color and thickness of your handwriting and even resize a drawing whenever you want without any loss in quality.

Squid takes special advantage of active pens on capable devices to provide natural, pressure sensitive handwriting. Just write with the pen and erase with your finger!

Squid is designed to be both powerful and simple to use, allowing you to take notes quickly and efficiently.

Awards/Recognition
• Featured App in Google Play
• Category Honorable Mention for Productivity in the Samsung Galaxy Note S Pen App Challenge: https://goo.gl/Ji9dCS
• Popular Choice Award in the Dual Screen App Challenge: https://goo.gl/J7uT0B

Key Features
• Take notes naturally with a pen and erase with your finger on active pen enabled devices (e.g. Galaxy Note devices with S Pen)
• Take notes with your finger or passive stylus on non-active pen devices (e.g. Nexus 7)
• Vector graphics engine
• Multiple paper types (e.g. blank, ruled, graph) and sizes (e.g. infinite, letter, A4)
• Undo/redo, select, move, and resize
• Change the color and weight of selected items
• Cut, copy, and paste items between notes
• Two finger scroll and pinch-to-zoom
• Two finger double tap to quickly jump to a specific zoom level
• Organize notes within notebooks
• Sort notes and notebooks
• Import, crop, and resize images
• Export notes to PDF, PNG, or JPEG for printing, archiving, or sharing
• Share notes with friends and colleagues via email, Evernote, etc.
• Multi-Window support
• Shortcuts to create a new note or open a notebook
• Present notes on a secondary display via HDMI, Chromecast, etc. (Android 4.2+)

Squid Premium
• Create notes and pages with premium backgrounds (math, engineering, music, sports, etc.)
• Import PDFs and mark them up like any other note
• Express yourself with additional tools (highlighter, “true” eraser, shapes, text)
• Backup/restore and bulk export notes as PDFs to cloud storage providers Dropbox and Box

Learn more about Squid Premium: https://goo.gl/mJFjeO

G Suite for Education customers can purchase Squid Premium in bulk using the Squid EDU Bulk License app (https://goo.gl/Kkxjtk).

Information about active pen devices: https://goo.gl/6BRJy

Explanation of required permissions: https://goo.gl/q5f8Y

If you encounter any bugs, please email us at [email protected] with a description of the bug!

We would love to hear any feedback or feature requests you have at http://feedback.squidnotes.com.

Interested in beta testing? Join our public beta directly through Google Play!

Squid - Take Notes & Markup PDFs details

Squid - Take Notes & Markup PDFs is a free Productivity app for Android with 10,000,000+ installs on Google Play and a 4.1/5 average rating from 70,332 ratings. It was released on March 28, 2012 and last updated on August 21, 2026. The app offers in-app purchases.

Category
Productivity
Rating
4.1 / 5 (70,332 ratings)
Installs
10,000,000+
Price
Free
In-app purchases
Yes
Ads
No ads
Requires Android
Varies with device
Content rating
Everyone
Released
March 28, 2012
Last updated
August 21, 2026

What’s new in Squid - Take Notes & Markup PDFs

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 • Improved app startup reliability • Fixed bulk exports when names contain consecutive periods • Under-the-hood compatibility improvements • Misc bug fixes and improvements Full changelog: http://goo.gl/EsAlNK

Updated August 21, 2026

Alternatives to Squid - Take Notes & Markup PDFs

Looking for apps like Squid - Take Notes & Markup PDFs? Here are 6 similar Android apps on Google Play. The highest rated is Notebook - Notes,To-do,Journal (4.4/5), and 5 of the 6 are free to download.

Flexcil Notes & PDF Reader

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Notebook - Notes,To-do,Journal

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Be more productive with this beautifully simple note-taking app. Available on Android,...

Squid - Take Notes & Markup PDFs vs. alternatives
App Rating Price Installs Last updated
Squid - Take Notes & Markup PDFs 4.1 / 5 Free 10,000,000+ Aug 21, 2026
Flexcil Notes & PDF Reader 3.4 / 5 Free 10,000+ –
Noteshelf - Notes, Annotations 3.3 / 5 4.99 USD 50,000+ –
touchnotes 3.5 / 5 Free 1,000+ –
INKredible-Handwriting Note 3.5 / 5 Free 5,000,000+ Apr 28, 2020
J notes:Good Notes& PDF Edit 3.7 / 5 Free 1,000,000+ Sep 9, 2026
Notebook - Notes,To-do,Journal 4.4 / 5 Free 1,000,000+ –

Frequently Asked Questions (FAQ)

What is Squid?
Squid is an app that allows you to take handwritten notes and markup PDFs on your Android tablet, phone, or Chromebook.
Can I use Squid on my Android device?
Yes, Squid is compatible with Android devices such as tablets, phones, and Chromebooks that support Android apps.
How can I take notes with Squid?
You can write on Squid just like you would on paper using an active pen, passive stylus, or your finger.
Can I markup PDFs with Squid?
Yes, Squid allows you to easily markup PDFs to fill out forms, edit/grade papers, or sign documents.
Can I organize my notes with Squid?
Yes, Squid allows you to organize your notes within notebooks, increasing your productivity.
Can I export my notes from Squid?
Yes, you can export your notes as PDFs or images, and then share them with others or store them in the cloud.
Is Squid compatible with active pens?
Yes, Squid takes special advantage of active pens on capable devices to provide natural, pressure-sensitive handwriting.
Are there any additional features in Squid Premium?
Yes, Squid Premium offers additional features such as premium backgrounds, the ability to import and mark up PDFs, and extra tools like highlighter, "true" eraser, shapes, and text.
Can G Suite for Education customers purchase Squid Premium in bulk?
Yes, G Suite for Education customers can purchase Squid Premium in bulk using the Squid EDU Bulk License app.
How can I report bugs or provide feedback for Squid?
If you encounter any bugs, you can email us at [email protected]. We also welcome any feedback or feature requests at http://feedback.squidnotes.com.
author
Good app for note taking and explaining stuff on the fly. Synergizes well with samsung S pen screen write.
Wei Sern Chan
author
Great app to use with my Note 4 stylus
Jim M.
author
This is super easy to use. I use it at university to cut down on paper and keep all my notes in one place week to week. I find it much easier to write the notes using my pen with the laptop rather that type ...
Becky Brockman
author
Good product
Lazizkhon Umidov
author
Very productive and nice app.
Mohammad Reza Dehghan
author
Excellent app. The reason for me to still buy Samsung tablets. Note to developers: a simple option to duplicate a note would benefit me.
Noa Zilberman