Introduced a `DxPopup` for signature creation in `EnvelopeViewer.razor`, supporting three input methods: drawing, text, and image upload.
- Added `receiver-signature.js` for signature handling via JavaScript interop.
- Implemented tab-based UI for switching between signature methods.
- Added validation for required fields (e.g., full name, place).
- Enhanced text signature customization with font selection and dynamic rendering.
- Introduced state management for signature input and popup visibility.
- Added methods for initializing, clearing, and saving signatures.
- Styled the popup for a user-friendly experience and added error messages.
- Configured the popup to open automatically on page load or button click.
This feature improves the user experience by providing a flexible and intuitive way to create signatures.
TekH
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