Delete signature

frontend/src/components/tools/sign/SignSettings.tsx

@@ -461,6 +461,7 @@ const SignSettings = ({ parameters, onParameterChange, disabled = false, onActiv
         />
       </div>
 
+
       {/* Signature Creation based on type */}
       {parameters.signatureType === 'canvas' && (
         <Paper withBorder p="md">

frontend/src/components/viewer/LocalEmbedPDF.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useMemo, useState } from 'react';
+import React, { useEffect, useMemo, useState, useRef } from 'react';
 import { createPluginRegistration } from '@embedpdf/core';
 import { EmbedPDF } from '@embedpdf/core/react';
 import { usePdfiumEngine } from '@embedpdf/engines/react';
@@ -46,6 +46,7 @@ interface LocalEmbedPDFProps {
 
 export function LocalEmbedPDF({ file, url, enableSignature = false, onSignatureAdded, signatureApiRef }: LocalEmbedPDFProps) {
   const [pdfUrl, setPdfUrl] = useState<string | null>(null);
+  const [annotations, setAnnotations] = useState<Array<{id: string, pageIndex: number, rect: any}>>([]);
 
   // Convert File to URL if needed
   useEffect(() => {
@@ -217,14 +218,34 @@ export function LocalEmbedPDF({ file, url, enableSignature = false, onSignatureA
             },
           });
 
-          // Listen for annotation events to notify parent component
-          if (onSignatureAdded) {
+          // Listen for annotation events to track annotations and notify parent
           annotationApi.onAnnotationEvent((event: any) => {
             if (event.type === 'create' && event.committed) {
+              // Add to annotations list
+              setAnnotations(prev => [...prev, {
+                id: event.annotation.id,
+                pageIndex: event.pageIndex,
+                rect: event.annotation.rect
+              }]);
+
+
+              // Notify parent if callback provided
+              if (onSignatureAdded) {
                 onSignatureAdded(event.annotation);
               }
-            });
+            } else if (event.type === 'delete' && event.committed) {
+              // Remove from annotations list
+              setAnnotations(prev => prev.filter(ann => ann.id !== event.annotation.id));
+            } else if (event.type === 'loaded') {
+              // Handle initial load of annotations
+              const loadedAnnotations = event.annotations || [];
+              setAnnotations(loadedAnnotations.map((ann: any) => ({
+                id: ann.id,
+                pageIndex: ann.pageIndex || 0,
+                rect: ann.rect
+              })));
             }
+          });
         } : undefined}
       >
         <ZoomAPIBridge />
@@ -297,6 +318,7 @@ export function LocalEmbedPDF({ file, url, enableSignature = false, onSignatureA
             )}
           />
           </Viewport>
+
         </GlobalPointerProvider>
       </EmbedPDF>
     </div>

frontend/src/components/viewer/SignatureAPIBridge.tsx

@@ -9,6 +9,8 @@ export interface SignatureAPI {
   addTextSignature: (text: string, x: number, y: number, pageIndex: number) => void;
   activateDrawMode: () => void;
   activateSignaturePlacementMode: () => void;
+  activateDeleteMode: () => void;
+  deleteAnnotation: (annotationId: string, pageIndex: number) => void;
   updateDrawSettings: (color: string, size: number) => void;
   deactivateTools: () => void;
   applySignatureFromParameters: (params: SignParameters) => void;
@@ -20,6 +22,30 @@ export const SignatureAPIBridge = forwardRef<SignatureAPI, SignatureAPIBridgePro
   const { provides: annotationApi } = useAnnotationCapability();
   const { signatureConfig } = useSignature();
 
+  // Enable keyboard deletion of selected annotations
+  useEffect(() => {
+    if (!annotationApi) return;
+
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key === 'Delete' || event.key === 'Backspace') {
+        const selectedAnnotation = annotationApi.getSelectedAnnotation?.();
+
+        if (selectedAnnotation) {
+          const annotation = selectedAnnotation as any;
+          const pageIndex = annotation.object?.pageIndex || 0;
+          const id = annotation.object?.id;
+
+          if (id) {
+            annotationApi.deleteAnnotation(pageIndex, id);
+          }
+        }
+      }
+    };
+
+    document.addEventListener('keydown', handleKeyDown);
+    return () => document.removeEventListener('keydown', handleKeyDown);
+  }, [annotationApi]);
+
   useImperativeHandle(ref, () => ({
     addImageSignature: (signatureData: string, x: number, y: number, width: number, height: number, pageIndex: number) => {
       if (!annotationApi) return;
@@ -183,6 +209,19 @@ export const SignatureAPIBridge = forwardRef<SignatureAPI, SignatureAPIBridgePro
       }, 50);
     },
 
+    activateDeleteMode: () => {
+      if (!annotationApi) return;
+      // Activate selection tool to allow selecting and deleting annotations
+      // Users can click annotations to select them, then press Delete key or right-click to delete
+      annotationApi.setActiveTool('select');
+    },
+
+    deleteAnnotation: (annotationId: string, pageIndex: number) => {
+      if (!annotationApi) return;
+      // Delete specific annotation by ID
+      annotationApi.deleteAnnotation(pageIndex, annotationId);
+    },
+
     deactivateTools: () => {
       if (!annotationApi) return;
       annotationApi.setActiveTool(null);
@@ -208,6 +247,11 @@ export const SignatureAPIBridge = forwardRef<SignatureAPI, SignatureAPIBridgePro
               id: uuidV4(),
               created: new Date(),
             });
+
+            // Switch to select mode after placing signature so it can be easily deleted
+            setTimeout(() => {
+              annotationApi.setActiveTool('select');
+            }, 100);
           }
           break;
 
@@ -231,6 +275,11 @@ export const SignatureAPIBridge = forwardRef<SignatureAPI, SignatureAPIBridgePro
               id: uuidV4(),
               created: new Date(),
             });
+
+            // Switch to select mode after placing signature so it can be easily deleted
+            setTimeout(() => {
+              annotationApi.setActiveTool('select');
+            }, 100);
           }
           break;
 

frontend/src/contexts/SignatureContext.tsx

@@ -17,6 +17,7 @@ interface SignatureActions {
   activateDrawMode: () => void;
   deactivateDrawMode: () => void;
   activateSignaturePlacementMode: () => void;
+  activateDeleteMode: () => void;
   updateDrawSettings: (color: string, size: number) => void;
 }
 
@@ -86,6 +87,13 @@ export const SignatureProvider: React.FC<{ children: ReactNode }> = ({ children
     }
   }, [state.signatureConfig, setPlacementMode]);
 
+  const activateDeleteMode = useCallback(() => {
+    if (signatureApiRef.current) {
+      signatureApiRef.current.activateDeleteMode();
+      setPlacementMode(true);
+    }
+  }, [setPlacementMode]);
+
   const updateDrawSettings = useCallback((color: string, size: number) => {
     if (signatureApiRef.current) {
       signatureApiRef.current.updateDrawSettings(color, size);
@@ -103,6 +111,7 @@ export const SignatureProvider: React.FC<{ children: ReactNode }> = ({ children
     activateDrawMode,
     deactivateDrawMode,
     activateSignaturePlacementMode,
+    activateDeleteMode,
     updateDrawSettings,
   };