Notes ABC: Handwriting & PDF

Notes ABC is a handwriting notes app and PDF annotator for Android. Write by hand with an S Pen, active stylus or your finger, mark up PDF documents, organize digital notebooks and study with flashcards. Core features work offline, and your notes stay on your device.

We are constantly working to improve Notes ABC, and your feedback is important to us. If you have an idea, a feature request or a problem to report, please contact us using the developer email on this page or leave a review.

Highlights :

- Smooth handwriting with a low-latency vector ink engine

- PDF annotation: highlight, underline, sign and write on PDFs

- Study tools: flashcards, spaced repetition and active recall tape

- Notebooks, folders, custom covers and paper templates

- Private and offline: no account needed, PIN and biometric notebook lock

Handwriting Notes

Turn your phone or tablet into a digital notebook. Notes ABC is built for natural handwriting, sketching and drawing.

- Pens: fountain pen, calligraphy pen, ballpoint, brush and highlighter

- Pressure- and tilt-responsive ink for S Pen and compatible styluses

- Vector ink stays sharp at any zoom level

- Vector eraser and freehand lasso to select, move, resize, duplicate and recolor strokes

- Draw and Hold shape recognition snaps lines, circles, rectangles and polygons

- Customizable stylus button shortcuts to switch between pens, highlighter and eraser

- Layers for background, ink and stickers

PDF Annotation and Markup

Import a PDF and write on it directly. Ideal for textbooks, worksheets, forms and reports.

- Highlight, underline and handwrite notes on PDF pages

- Add and place your signature on documents

- Insert blank pages, reorder pages or remove pages with the page sorter

- Export your annotated notes as a vector PDF that stays crisp on screen and in print

- Split-screen workspace: read a textbook on one side and take notes on the other

Study Tools:

Make handwritten study notes and revise them in the same app.

- Flashcard decks with on-device spaced repetition (SM-2)

- Active recall occlusion tape: cover key answers, then tap to reveal while self-testing

- Built-in offline computer algebra system (CAS) to calculate and solve equations

Organize Your Notebooks:

- Custom folders and notebook covers

- Quick note menu on the home screen: lock, export as PDF or delete

- Paper templates: college ruled, wide ruled, grid, dotted grid, Cornell notes, music staff and daily planner

- Paper tints: white, ivory cream, warm sepia, soft mint, rose and dark mode

- Color palettes with an HSV picker and quick-access color slots

Privacy and Offline Use:

- No account or sign-in required

- Write, annotate and study without an internet connection

- Notes are saved in encrypted local storage on your device

- Lock individual notebooks with a PIN or biometrics

- One-tap local backup and restore

Who Is Notes ABC For?

- Students: class notes, lecture notes, exam revision and PDF textbooks

- Teachers and educators: marking up worksheets, handouts and documents

- Professionals: meeting notes, reports, contracts and signed documents

- Anyone who prefers handwriting to typing

Common Questions:

Can I annotate PDFs? Yes. Import a PDF, then highlight, underline, sign and handwrite on its pages.

Does it work with S Pen? Yes. It supports S Pen and other active styluses.

Does it work offline? Yes. Handwriting, PDF annotation and flashcards work without an internet connection.

Do I need an account? No. Your notes stay on your device.

Can I study with it? Yes. Use flashcards with spaced repetition and active recall tape.

Download Notes ABC, create a notebook and start writing by hand. Tell us what you would like to see next, because your feedback helps shape every update.