A lightweight web PDF editor. Open, edit, export, and print PDFs in the browser — files never leave your machine.
paperoo-walkthrough.mp4
Video not playing? Watch the walkthrough.
- Open a PDF with the file picker, drag-and-drop, or the bundled sample (
⌘O/Ctrl+O) - Overlay tools: select, text, image, draw, signature, highlight, and shapes (rectangle, line, circle)
- Edit existing page content: text runs, images, vectors, annotations (links, markup, free text, notes, stamps), and AcroForm fields
- OCR scanned pages with Tesseract.js; search native text, overlay text, and OCR words
- Reorder, rotate, and delete pages from the thumbnail sidebar (the last page cannot be deleted)
- Zoom 10%–800%, fit page, fit width, undo/redo, export, and print the edited PDF
Requires Node.js ^20.19.0 || ^22.13.0 || >=24 and pnpm.
pnpm install
pnpm devpnpm install copies pdf.js assets and Tesseract/OCR files into public/ (scripts/copy-pdfjs-assets.mjs, scripts/copy-ocr-assets.mjs).
| Command | Description |
|---|---|
pnpm dev |
Start the Next.js dev server |
pnpm build |
Production build |
pnpm start |
Serve the production build |
pnpm test |
Run Vitest |
pnpm typecheck |
TypeScript (tsc --noEmit) |
pnpm check |
Ultracite lint/format check |
pnpm fix |
Ultracite auto-fix |
pnpm lint |
ESLint |
pnpm format |
Prettier on TypeScript files |
| Action | Keys |
|---|---|
| Open | ⌘O / Ctrl+O |
| Undo | ⌘Z / Ctrl+Z |
| Redo | ⇧⌘Z / Ctrl+Shift+Z or ⌘Y / Ctrl+Y |
⌘P / Ctrl+P |
|
| Zoom in / out | ⌘= / ⌘- (Ctrl on Windows/Linux) |
| Delete selection | Delete or Backspace |
| Nudge selection | Arrow keys (Shift for 10px) |
| Previous / next page | Page Up / Page Down |
| Leave tool / deselect | Esc |
| Tools | V select, T text, I image, D draw, S signature, H highlight, R shapes |
| Toggle light / dark theme | M |
- Maximum file size: 80 MB
- Maximum page count: 200
- Encrypted PDFs cannot be opened or exported
- Needs Chrome or Edge 140+, Firefox 133+, or Safari 18.2+. Older browsers see an "Update your browser" message
Next.js 16, React 19, pdf.js for rendering, pdf-lib for export, Tesseract.js for OCR, Tailwind CSS 4.
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app/ App Router entry
components/editor/ Editor UI
lib/editor/ Editor state and types
lib/pdf/ Load, extract, export, print
lib/ocr/ OCR session and search
test/ Vitest suites
Issues and pull requests are welcome. See CONTRIBUTING.md for how to set up the project, name branches, and write commits.
Please don't report security issues in public issues or pull requests. Email them privately to security@paperoo.app. See SECURITY.md for what to include.
Paperoo is licensed under the GNU Affero General Public License v3.0. You can use, change, and share it. If you run a changed version for other people, including as a website, you must share your source code under the same license.