A live PDF viewer paired with an infinite writing pad. Annotate your PDF and take handwritten or typed notes right beside it — a modern, open alternative to Microsoft OneNote.
Built in Pakistan, Made for the World.
A workspace, not a screenshot tool
The PDF is never flattened to an image. Select its text, search it, and link any spot to your notes.
Slide out an infinite writing pad over your PDF. Handwrite, type Markdown notes, highlight, and sign — without ever leaving the page you're reading.
Pen, highlighter and erasers work right on the PDF — and a box eraser lifts just the part you touch. Drop a page marker and it pins to the page margin.
Send a snapshot or extracted text from the PDF to a card on the pad. Bidirectional markers jump you between a PDF spot and its matching note — instantly.
Everything in one tab
A focused set of tools that stay out of your way.
Crisp PDF.js rendering, real selectable text, search, zoom, and an outline panel — the document stays a document.
Low-latency, smooth ink with a clean uniform line. Highlighter and a true box eraser that erases only what it covers.
Tie a spot on the PDF to a spot on your pad. Click either flag to jump to the other — your reading and notes stay in sync.
Drag a region to send a snapshot card to the pad, or pull out a block of PDF text as an editable, formatted note.
Type rich notes with Markdown and LaTeX math, write freehand, and even draw on top of your cards.
Group multiple PDFs into a course; each book keeps its own notes, markers and annotations. Save to a portable file.
Light, dark, sepia and night themes, an OneNote-style polished UI, and export your pad as a PNG.
No servers, no account, no tracking, no ads. PDFs and notes never leave your device, and it runs fully offline.
Simple pricing
No subscriptions, ever. Pay once and own it.
Everything you need to read & annotate.
Unlock the whole thing — forever.
One-time payment — no subscription. PRO unlocks when PDFNoteFlow launches.
PDFNoteFlow makes no network requests. Your PDFs, notes, annotations and settings live on your device and in files you save. No account, no analytics, no ads. Read the privacy policy →
One email on launch day — no spam, no newsletters. You'll get the link the moment it's ready.
One email only. No spam. No subscription. · Explore PyNoteFlow →