Help & Documentation
Everything you need to master PDF annotation with LeedPDF. From basic tools to advanced features.
Quick Navigation
Getting Started
How do I start using LeedPDF?
Simply visit leed.my and either upload a PDF file or paste a PDF URL. No registration or download required!
What file formats are supported?
LeedPDF supports standard PDF files up to 50MB. You can upload local files or load PDFs from URLs (including Dropbox links).
Do I need to create an account?
No! LeedPDF works without any account registration. Just open the app and start annotating immediately.
Is my data safe?
Absolutely. All processing happens locally in your browser. Your PDFs never leave your device or get uploaded to our servers.
Drawing Tools
How do I select different tools?
Use the toolbar at the top or keyboard shortcuts: 1 (Pencil), 2 (Eraser), 3 (Text), 4 (Rectangle), 5 (Circle), 6 (Arrow), 7 (Star), 8 (Highlight), 9 (Notes).
Can I change colors and sizes?
Yes! Click on the color palette and size options in the toolbar. Each tool remembers your preferred settings.
How does the smart eraser work?
The smart eraser removes only the drawing elements you touch, preserving the original PDF content underneath.
Can I add text annotations?
Select the text tool (T) or press 3, then click anywhere on the PDF to add text. You can edit text by double-clicking it.
Keyboard Shortcuts
What are the essential keyboard shortcuts?
Numbers 1-9 select tools, Arrow keys navigate pages, Ctrl+Z/Y for undo/redo, W/H for fit width/height, T for thumbnails, U to upload, F for focus mode.
How do I undo and redo changes?
Press Ctrl+Z to undo and Ctrl+Y or Ctrl+Shift+Z to redo. These work for all drawing and annotation actions.
Is there a fullscreen mode?
Yes! Press F11 to enter fullscreen mode. Press Escape or F11 again to exit.
How do I access help quickly?
Press ? (question mark) or F1 to open the keyboard shortcuts panel from anywhere in the app.
Advanced Features
How do I export my annotated PDF?
Click the export button in the toolbar or use the file menu. Your annotations will be embedded in the exported PDF.
Can I load PDFs from cloud storage?
Yes! You can paste direct links to PDFs from Dropbox, Google Drive, or any publicly accessible URL.
Does LeedPDF work on tablets?
Absolutely! LeedPDF is optimized for touch devices and works great with styluses like Apple Pencil.
Can I work offline?
Yes! LeedPDF is a PWA (Progressive Web App) that works offline after your first visit. You can annotate local PDFs without internet.
Troubleshooting
My PDF won't load. What should I do?
Check that the file is a valid PDF under 50MB. For URL loading, ensure the link is publicly accessible and ends with .pdf.
The drawing feels laggy. How can I improve performance?
Try reducing the zoom level, closing other browser tabs, or switching to a simpler drawing tool. Performance improves on modern devices.
My annotations disappeared. Can I recover them?
LeedPDF auto-saves your work locally. Try refreshing the page or uploading the same file again to restore your annotations.
Can I use LeedPDF on my phone?
Yes! LeedPDF works on mobile browsers. For the best experience on small screens, use landscape orientation and focus mode (F key).
Feedback & Support
How do I report a bug?
Found a bug? Please report it on our GitHub Issues page. Include details about what you were doing when the bug occurred and your browser/device information.
How can I request a new feature?
Have an idea for a new feature? We'd love to hear it! Submit your feature request on GitHub Issues. Describe your use case and how the feature would help you.
Is there a community or forum?
The best place to discuss LeedPDF, ask questions, and connect with other users is through GitHub Discussions and Issues.
How can I contribute to the project?
LeedPDF is open source! You can contribute code, report bugs, suggest features, or help with documentation. Check out our Contributing Guide on GitHub for more information.
Ready to Get Started?
The best way to learn is by doing. Start annotating your first PDF now!