This e-signature application allows users to upload PDF documents and add draggable, resizable signature boxes for recipients. Here's what the implementation includes:

Key Features:

• PDF upload and preview using react-pdf
• Draggable and resizable signature boxes that can be placed anywhere on the document
• Page navigation for multi-page PDFs
• Zoom controls for better precision
• Detailed signature field configuration panel
• Ability to assign recipients to each signature field
• Position and size adjustment through both drag-and-drop and manual input

How to Use:

1. Upload a PDF document using the file input
2. Click "Add Signature Field" to create a new signature box
3. Drag the signature box to position it on the document
4. Resize the box by dragging the handle in the bottom-right corner
5. Configure recipient details and exact positioning in the side panel
6. Navigate between pages using the controls at the top
7. Adjust zoom level as needed for precision placement

The implementation is responsive and will work well on both desktop and mobile devices. The signature boxes maintain their relative positions when zooming in and out of the document.

I've fixed the PDF loading error by making three key changes:

1. Fixed the PDF Document component:

   • Changed file={pdfUrl} to file={{ url: pdfUrl }} in the Document component
   • This properly formats the URL for the react-pdf library which expects either a string or a URL object

2. Fixed the event listener in DraggableSignatureBox:

   • Changed useState() to useEffect() for adding/removing event listeners
   • This ensures proper cleanup of event listeners when the component unmounts

3. Added proper cleanup for object URLs:

   • Added a useEffect hook to revoke object URLs when the component unmounts
   • Also revoke previous URLs when a new file is selected
   • This prevents memory leaks from unused object URLs

These changes should resolve the "Invalid PDF url data" error and ensure the application works correctly. The PDF should now load properly, and you'll be able to add, drag, and resize signature boxes on the document.