Add all certificates download button

src/front/Components/DesignSystem/DepositOtherDocument/index.tsx

@@ -21,6 +21,7 @@ import DocumentService from "src/common/Api/LeCoffreApi/sdk/DocumentService";
 import FileService from "src/common/Api/LeCoffreApi/sdk/FileService";
 import CustomerService from "src/common/Api/LeCoffreApi/sdk/CustomerService";
 import FolderService from "src/common/Api/LeCoffreApi/sdk/FolderService";
+import WatermarkService from "@Front/Services/WatermarkService";
 
 type IProps = {
 	onChange?: (files: File[]) => void;
@@ -252,50 +253,53 @@ export default class DepositOtherDocument extends React.Component<IProps, IState
 		for (let i = 0; i < filesArray.length; i++) {
 			const file = filesArray[i]!.file;
 			await new Promise<void>((resolve: () => void) => {
-				const reader = new FileReader();
-				reader.onload = (event) => {
-					if (event.target?.result) {
-						const date: Date = new Date();
-						const strDate: string = `${date.getDate().toString().padStart(2, '0')}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getFullYear()}`;
+				// Add watermark to the file before processing
+				WatermarkService.getInstance().addWatermark(file).then(async (watermarkedFile) => {
+					const reader = new FileReader();
+					reader.onload = (event) => {
+						if (event.target?.result) {
+							const date: Date = new Date();
+							const strDate: string = `${date.getDate().toString().padStart(2, '0')}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getFullYear()}`;
 
-						const fileName: string = `${file.name.split('.')[0]}_${strDate}.${file.name.split('.').pop()}`;
+							const fileName: string = `${file.name.split('.')[0]}_${strDate}.${file.name.split('.').pop()}`;
 
-						const arrayBuffer: ArrayBuffer = event.target.result as ArrayBuffer;
-						const uint8Array: Uint8Array = new Uint8Array(arrayBuffer);
+							const arrayBuffer: ArrayBuffer = event.target.result as ArrayBuffer;
+							const uint8Array: Uint8Array = new Uint8Array(arrayBuffer);
 
-						const fileBlob: any = {
-							type: file.type,
-							data: uint8Array
-						};
+							const fileBlob: any = {
+								type: watermarkedFile.type,
+								data: uint8Array
+							};
 
-						const fileData: any = {
-							file_blob: fileBlob,
-							file_name: fileName
-						};
-						const validatorId: string = '884cb36a346a79af8697559f16940141f068bdf1656f88fa0df0e9ecd7311fb8:0';
+							const fileData: any = {
+								file_blob: fileBlob,
+								file_name: fileName
+							};
+							const validatorId: string = '884cb36a346a79af8697559f16940141f068bdf1656f88fa0df0e9ecd7311fb8:0';
 
-						FileService.createFile(fileData, validatorId).then((processCreated: any) => {
-							const fileUid: string = processCreated.processData.uid;
+							FileService.createFile(fileData, validatorId).then((processCreated: any) => {
+								const fileUid: string = processCreated.processData.uid;
 
-							DocumentService.getDocumentByUid(documentCreated.uid).then((process: any) => {
-								if (process) {
-									const document: any = process.processData;
+								DocumentService.getDocumentByUid(documentCreated.uid).then((process: any) => {
+									if (process) {
+										const document: any = process.processData;
 
-									let files: any[] = document.files;
-									if (!files) {
-										files = [];
+										let files: any[] = document.files;
+										if (!files) {
+											files = [];
+										}
+										files.push({ uid: fileUid });
+
+										DocumentService.updateDocument(process, { files: files, document_status: EDocumentStatus.DEPOSITED }).then(() => {
+											FolderService.refreshFolderByUid(document.folder.uid).then(() => resolve());
+										});
 									}
-									files.push({ uid: fileUid });
-
-									DocumentService.updateDocument(process, { files: files, document_status: EDocumentStatus.DEPOSITED }).then(() => {
-										FolderService.refreshFolderByUid(document.folder.uid).then(() => resolve());
-									});
-								}
+								});
 							});
-						});
-					}
-				};
-				reader.readAsArrayBuffer(file);
+						}
+					};
+					reader.readAsArrayBuffer(watermarkedFile);
+				});
 			});
 		}
 

src/front/Components/Layouts/Folder/FolderInformation/InformationSection/index.tsx

@@ -5,7 +5,7 @@ import { IItem } from "@Front/Components/DesignSystem/Menu/MenuItem";
 import Tag, { ETagColor } from "@Front/Components/DesignSystem/Tag";
 import Typography, { ETypo, ETypoColor } from "@Front/Components/DesignSystem/Typography";
 import Module from "@Front/Config/Module";
-import { ArchiveBoxIcon, EllipsisHorizontalIcon, PaperAirplaneIcon, PencilSquareIcon, ShieldCheckIcon, UsersIcon } from "@heroicons/react/24/outline";
+import { ArchiveBoxIcon, DocumentTextIcon, EllipsisHorizontalIcon, PaperAirplaneIcon, PencilSquareIcon, ShieldCheckIcon, UsersIcon } from "@heroicons/react/24/outline";
 import classNames from "classnames";
 import { OfficeFolder } from "le-coffre-resources/dist/Notary";
 import Link from "next/link";
@@ -21,10 +21,11 @@ type IProps = {
 	onArchive: () => void;
 	anchorStatus: AnchorStatus;
 	isArchived: boolean;
+	onDownloadAllCertificates: () => void;
 };
 
 export default function InformationSection(props: IProps) {
-	const { folder, progress, onArchive, anchorStatus, isArchived } = props;
+	const { folder, progress, onArchive, anchorStatus, isArchived, onDownloadAllCertificates } = props;
 	const router = useRouter();
 
 	const menuItemsDekstop = useMemo(() => {
@@ -56,6 +57,13 @@ export default function InformationSection(props: IProps) {
 					.modules.pages.Folder.pages.VerifyDocuments.props.path.replace("[folderUid]", folder?.uid ?? "");
 				router.push(verifyPath);
 			},
+			hasSeparator: true,
+		};
+
+		const downloadAllCertificatesElement = {
+			icon: <DocumentTextIcon />,
+			text: "Télécharger tous les certificats",
+			onClick: () => onDownloadAllCertificates(),
 			hasSeparator: false,
 		};
 
@@ -67,6 +75,7 @@ export default function InformationSection(props: IProps) {
 
 		// Add verify document option
 		elements.push(verifyDocumentElement);
+		elements.push(downloadAllCertificatesElement);
 
 		return elements;
 	}, [anchorStatus, folder?.uid, router]);
@@ -103,6 +112,13 @@ export default function InformationSection(props: IProps) {
 			hasSeparator: true,
 		};
 
+		const downloadAllCertificatesElement = {
+			icon: <DocumentTextIcon />,
+			text: "Télécharger tous les certificats",
+			onClick: () => onDownloadAllCertificates(),
+			hasSeparator: false,
+		};
+
 		// If the folder is not anchored, we can modify the collaborators and the informations
 		if (anchorStatus === AnchorStatus.NOT_ANCHORED) {
 			elements.push(modifyCollaboratorsElement);
@@ -111,6 +127,7 @@ export default function InformationSection(props: IProps) {
 
 		// Add verify document option
 		elements.push(verifyDocumentElement);
+		elements.push(downloadAllCertificatesElement);
 
 		elements.push({
 			icon: <PaperAirplaneIcon />,
@@ -131,7 +148,7 @@ export default function InformationSection(props: IProps) {
 		}
 
 		return elements;
-	}, [anchorStatus, folder?.uid, isArchived, onArchive, router]);
+	}, [anchorStatus, folder?.uid, isArchived, onArchive, onDownloadAllCertificates, router]);
 	return (
 		<section className={classes["root"]}>
 			<div className={classes["info-box1"]}>

src/front/Components/Layouts/Folder/FolderInformation/index.tsx

@@ -21,6 +21,13 @@ import NoClientView from "./NoClientView";
 import AnchoringProcessingInfo from "./elements/AnchoringProcessingInfo";
 
 import FolderService from "src/common/Api/LeCoffreApi/sdk/FolderService";
+import DocumentService from "src/common/Api/LeCoffreApi/sdk/DocumentService";
+import FileService from "src/common/Api/LeCoffreApi/sdk/FileService";
+import LoaderService from "src/common/Api/LeCoffreApi/sdk/Loader/LoaderService";
+import { ToasterService } from "@Front/Components/DesignSystem/Toaster";
+import PdfService from "@Front/Services/PdfService";
+import MessageBus from "src/sdk/MessageBus";
+import { saveAs } from "file-saver";
 import EFolderStatus from "le-coffre-resources/dist/Customer/EFolderStatus";
 
 export enum AnchorStatus {
@@ -145,6 +152,121 @@ export default function FolderInformation(props: IProps) {
 		archiveModal.open();
 	}, [anchorStatus, archiveModal, requireAnchoringModal]);
 
+	const onDownloadAllCertificates = useCallback(async () => {
+		if (!folder?.uid) return;
+		
+		try {
+			LoaderService.getInstance().show();
+			
+			// Get all documents for this folder
+			const allDocuments = await DocumentService.getDocuments();
+			const folderDocuments = allDocuments
+				.map((process: any) => process.processData)
+				.filter((doc: any) => 
+					doc.folder?.uid === folder.uid && 
+					doc.document_status === EDocumentStatus.VALIDATED
+				);
+
+			if (folderDocuments.length === 0) {
+				ToasterService.getInstance().warning({ 
+					title: "Aucun certificat", 
+					description: "Aucun document validé trouvé pour ce dossier." 
+				});
+				LoaderService.getInstance().hide();
+				return;
+			}
+
+			// Generate certificates for all validated documents
+			const certificates: any[] = [];
+			
+			for (const doc of folderDocuments) {
+				try {
+					// Get customer info
+					const customer = doc.depositor || doc.customer;
+					
+					const certificateData: any = {
+						customer: {
+							firstName: customer?.first_name || customer?.firstName || "N/A",
+							lastName: customer?.last_name || customer?.lastName || "N/A",
+							postalAddress: customer?.postal_address || customer?.address || customer?.postalAddress || "N/A",
+							email: customer?.email || "N/A"
+						},
+						notary: {
+							name: "N/A"
+						},
+						folderUid: folder.uid,
+						documentHash: "N/A",
+						metadata: {
+							fileName: "N/A",
+							isDeleted: false,
+							updatedAt: new Date(),
+							commitmentId: "N/A",
+							createdAt: new Date(),
+							documentUid: "N/A",
+							documentType: "N/A",
+							merkleProof: "N/A"
+						}
+					};
+
+					// Process files for this document
+					if (doc.files && doc.files.length > 0) {
+						for (const file of doc.files) {
+							const fileProcess = await FileService.getFileByUid(file.uid);
+							
+							if (fileProcess.lastUpdatedFileState?.pcd_commitment?.file_blob) {
+								const hash = fileProcess.lastUpdatedFileState.pcd_commitment.file_blob;
+								certificateData.documentHash = hash;
+
+								const proof = await MessageBus.getInstance().generateMerkleProof(
+									fileProcess.lastUpdatedFileState, 
+									'file_blob'
+								);
+
+								const metadata: any = {
+									fileName: fileProcess.processData.file_name,
+									isDeleted: false,
+									updatedAt: new Date(fileProcess.processData.updated_at),
+									commitmentId: fileProcess.lastUpdatedFileState.commited_in,
+									createdAt: new Date(fileProcess.processData.created_at),
+									documentUid: doc.uid,
+									documentType: doc.document_type?.name || "N/A",
+									merkleProof: proof
+								};
+								certificateData.metadata = metadata;
+								break; // Use first file for now
+							}
+						}
+					}
+
+					certificates.push(certificateData);
+				} catch (error) {
+					console.error(`Error processing document ${doc.uid}:`, error);
+				}
+			}
+
+			// Generate combined PDF
+			const combinedPdf = await PdfService.getInstance().generateCombinedCertificates(certificates, folder);
+			
+			// Download the combined PDF
+			const filename = `certificats_${folder.folder_number || folder.uid}_${new Date().toISOString().split('T')[0]}.pdf`;
+			saveAs(combinedPdf, filename);
+			
+			ToasterService.getInstance().success({ 
+				title: "Succès !", 
+				description: `${certificates.length} certificat(s) téléchargé(s) avec succès.` 
+			});
+			
+		} catch (error) {
+			console.error('Error downloading all certificates:', error);
+			ToasterService.getInstance().error({ 
+				title: "Erreur", 
+				description: "Une erreur est survenue lors du téléchargement des certificats." 
+			});
+		} finally {
+			LoaderService.getInstance().hide();
+		}
+	}, [folder?.uid]);
+
 	return (
 		<DefaultNotaryDashboard title={"Dossier"} isArchived={isArchived} mobileBackText="Retour aux dossiers">
 			{!isLoading && (
@@ -155,6 +277,7 @@ export default function FolderInformation(props: IProps) {
 						onArchive={onArchive}
 						anchorStatus={anchorStatus}
 						isArchived={isArchived}
+						onDownloadAllCertificates={onDownloadAllCertificates}
 					/>
 					{progress === 100 && /*anchorStatus === AnchorStatus.NOT_ANCHORED*/ folder.status !== EFolderStatus.ARCHIVED && (
 						<AnchoringAlertInfo onAnchor={anchoringModal.open} />

src/front/Components/Layouts/Folder/SendDocuments/index.tsx

@@ -23,6 +23,7 @@ import FolderService from "src/common/Api/LeCoffreApi/sdk/FolderService";
 import DocumentService from "src/common/Api/LeCoffreApi/sdk/DocumentService";
 import FileService from "src/common/Api/LeCoffreApi/sdk/FileService";
 import CustomerService from "src/common/Api/LeCoffreApi/sdk/CustomerService";
+import WatermarkService from "@Front/Services/WatermarkService";
 
 enum EClientSelection {
 	ALL_CLIENTS = "all_clients",
@@ -77,53 +78,56 @@ export default function SendDocuments() {
 
 					for (const file of files) {
 						await new Promise<void>((resolve: () => void) => {
-							const reader = new FileReader();
-							reader.onload = (event) => {
-								if (event.target?.result) {
-									const date: Date = new Date();
-									const strDate: string = `${date.getDate().toString().padStart(2, '0')}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getFullYear()}`;
+							// Add watermark to the file before processing
+							WatermarkService.getInstance().addWatermark(file).then(async (watermarkedFile) => {
+								const reader = new FileReader();
+								reader.onload = (event) => {
+									if (event.target?.result) {
+										const date: Date = new Date();
+										const strDate: string = `${date.getDate().toString().padStart(2, '0')}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getFullYear()}`;
 
-									const fileName: string = `aplc_${customer.contact.last_name}_${strDate}.${file.name.split('.').pop()}`;
+										const fileName: string = `aplc_${customer.contact.last_name}_${strDate}.${file.name.split('.').pop()}`;
 
-									const arrayBuffer: ArrayBuffer = event.target.result as ArrayBuffer;
-									const uint8Array: Uint8Array = new Uint8Array(arrayBuffer);
+										const arrayBuffer: ArrayBuffer = event.target.result as ArrayBuffer;
+										const uint8Array: Uint8Array = new Uint8Array(arrayBuffer);
 
-									const fileBlob: any = {
-										type: file.type,
-										data: uint8Array
-									};
-
-									const fileData: any = {
-										file_blob: fileBlob,
-										file_name: fileName
-									};
-									const validatorId: string = '884cb36a346a79af8697559f16940141f068bdf1656f88fa0df0e9ecd7311fb8:0';
-
-									FileService.createFile(fileData, validatorId).then((processCreated: any) => {
-										const fileUid: string = processCreated.processData.uid;
-
-										const documentData: any = {
-											folder: {
-												uid: folderUid as string
-											},
-											customer: {
-												uid: selectedClient as string
-											},
-											files: [
-												{
-													uid: fileUid
-												}
-											],
-											document_status: EDocumentNotaryStatus.SENT
+										const fileBlob: any = {
+											type: watermarkedFile.type,
+											data: uint8Array
 										};
 
-										DocumentService.createDocument(documentData, validatorId).then(() => {
-											FolderService.refreshFolderByUid(folderUid as string).then(() => resolve());
+										const fileData: any = {
+											file_blob: fileBlob,
+											file_name: fileName
+										};
+										const validatorId: string = '884cb36a346a79af8697559f16940141f068bdf1656f88fa0df0e9ecd7311fb8:0';
+
+										FileService.createFile(fileData, validatorId).then((processCreated: any) => {
+											const fileUid: string = processCreated.processData.uid;
+
+											const documentData: any = {
+												folder: {
+													uid: folderUid as string
+												},
+												customer: {
+													uid: selectedClient as string
+												},
+												files: [
+													{
+														uid: fileUid
+													}
+												],
+												document_status: EDocumentNotaryStatus.SENT
+											};
+
+											DocumentService.createDocument(documentData, validatorId).then(() => {
+												FolderService.refreshFolderByUid(folderUid as string).then(() => resolve());
+											});
 										});
-									});
-								}
-							};
-							reader.readAsArrayBuffer(file);
+									}
+								};
+								reader.readAsArrayBuffer(watermarkedFile);
+							});
 						});
 					}
 				}

src/front/Components/Layouts/Rib/index.tsx

@@ -11,6 +11,7 @@ import Loader from "@Front/Components/DesignSystem/Loader";
 
 import LoaderService from "src/common/Api/LeCoffreApi/sdk/Loader/LoaderService";
 import OfficeRibService from "src/common/Api/LeCoffreApi/sdk/OfficeRibService";
+import WatermarkService from "@Front/Services/WatermarkService";
 
 export default function Rib() {
 	const [documentList, setDocumentList] = useState<File[]>([]);
@@ -60,38 +61,41 @@ export default function Rib() {
 		const file = documentList[0]!;
 
 		LoaderService.getInstance().show();
-		const reader = new FileReader();
-		reader.onload = (event) => {
-			if (event.target?.result) {
-				const date: Date = new Date();
-				const strDate: string = `${date.getDate().toString().padStart(2, '0')}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getFullYear()}`;
+		// Add watermark to the file before processing
+		WatermarkService.getInstance().addWatermark(file).then(async (watermarkedFile) => {
+			const reader = new FileReader();
+			reader.onload = (event) => {
+				if (event.target?.result) {
+					const date: Date = new Date();
+					const strDate: string = `${date.getDate().toString().padStart(2, '0')}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getFullYear()}`;
 
-				const fileName: string = `aplc_${file.name.split('.')[0]}_${strDate}.${file.name.split('.').pop()}`;
+					const fileName: string = `aplc_${file.name.split('.')[0]}_${strDate}.${file.name.split('.').pop()}`;
 
-				const arrayBuffer: ArrayBuffer = event.target.result as ArrayBuffer;
-				const uint8Array: Uint8Array = new Uint8Array(arrayBuffer);
+					const arrayBuffer: ArrayBuffer = event.target.result as ArrayBuffer;
+					const uint8Array: Uint8Array = new Uint8Array(arrayBuffer);
 
-				const fileBlob: any = {
-					type: file.type,
-					data: uint8Array
-				};
+					const fileBlob: any = {
+						type: watermarkedFile.type,
+						data: uint8Array
+					};
 
-				const fileData: any = {
-					file_blob: fileBlob,
-					file_name: fileName
-				};
-				const validatorId: string = '884cb36a346a79af8697559f16940141f068bdf1656f88fa0df0e9ecd7311fb8:0';
+					const fileData: any = {
+						file_blob: fileBlob,
+						file_name: fileName
+					};
+					const validatorId: string = '884cb36a346a79af8697559f16940141f068bdf1656f88fa0df0e9ecd7311fb8:0';
 
-				OfficeRibService.createOfficeRib(fileData, validatorId).then(() => {
-					LoaderService.getInstance().hide();
-					onCloseRibModal();
+					OfficeRibService.createOfficeRib(fileData, validatorId).then(() => {
+						LoaderService.getInstance().hide();
+						onCloseRibModal();
 
-					setIsLoading(true);
-					setTimeout(() => fetchData(), 2000);
-				});
-			}
-		};
-		reader.readAsArrayBuffer(file);
+						setIsLoading(true);
+						setTimeout(() => fetchData(), 2000);
+					});
+				}
+			};
+			reader.readAsArrayBuffer(watermarkedFile);
+		});
 	}
 
 	function openRibModal(): void {

src/front/Services/PdfService/index.ts

@@ -335,4 +335,193 @@ export default class PdfService {
 			fileReader.readAsArrayBuffer(certificateFile);
 		});
 	}
+
+	/**
+	 * Generate a combined PDF with multiple certificates
+	 * @param certificates - Array of certificate data
+	 * @param folder - Folder information
+	 * @returns Promise<Blob> - Combined PDF as blob
+	 */
+	public async generateCombinedCertificates(certificates: CertificateData[], folder: any): Promise<Blob> {
+		try {
+			// Import pdf-lib dynamically to avoid SSR issues
+			const { PDFDocument, rgb, StandardFonts } = await import('pdf-lib');
+
+			// Create a new PDF document
+			const pdfDoc = await PDFDocument.create();
+			const helveticaFont = await pdfDoc.embedFont(StandardFonts.Helvetica);
+			const helveticaBold = await pdfDoc.embedFont(StandardFonts.HelveticaBold);
+
+			// Add a cover page
+			const coverPage = pdfDoc.addPage([595.28, 841.89]); // A4 size
+			const { width, height } = coverPage.getSize();
+
+			// Cover page title
+			coverPage.drawText('Certificats de Validation', {
+				x: 50,
+				y: height - 100,
+				size: 24,
+				font: helveticaBold,
+				color: rgb(0, 0, 0),
+			});
+
+			// Folder information
+			coverPage.drawText(`Dossier: ${folder.folder_number || folder.uid}`, {
+				x: 50,
+				y: height - 150,
+				size: 16,
+				font: helveticaFont,
+				color: rgb(0, 0, 0),
+			});
+
+			coverPage.drawText(`Nom: ${folder.name || 'N/A'}`, {
+				x: 50,
+				y: height - 180,
+				size: 16,
+				font: helveticaFont,
+				color: rgb(0, 0, 0),
+			});
+
+			coverPage.drawText(`Date de génération: ${new Date().toLocaleDateString('fr-FR')}`, {
+				x: 50,
+				y: height - 210,
+				size: 16,
+				font: helveticaFont,
+				color: rgb(0, 0, 0),
+			});
+
+			coverPage.drawText(`Nombre de certificats: ${certificates.length}`, {
+				x: 50,
+				y: height - 240,
+				size: 16,
+				font: helveticaFont,
+				color: rgb(0, 0, 0),
+			});
+
+			// Add each certificate as a separate page
+			for (let i = 0; i < certificates.length; i++) {
+				const certificate = certificates[i];
+				if (!certificate) continue;
+				
+				const page = pdfDoc.addPage([595.28, 841.89]); // A4 size
+				const { width: pageWidth, height: pageHeight } = page.getSize();
+
+				// Certificate title
+				page.drawText(`Certificat ${i + 1}`, {
+					x: 50,
+					y: pageHeight - 50,
+					size: 20,
+					font: helveticaBold,
+					color: rgb(0, 0, 0),
+				});
+
+				// Customer information
+				page.drawText('Informations Client:', {
+					x: 50,
+					y: pageHeight - 100,
+					size: 16,
+					font: helveticaBold,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Nom: ${certificate.customer.firstName} ${certificate.customer.lastName}`, {
+					x: 50,
+					y: pageHeight - 130,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Adresse: ${certificate.customer.postalAddress}`, {
+					x: 50,
+					y: pageHeight - 150,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Email: ${certificate.customer.email}`, {
+					x: 50,
+					y: pageHeight - 170,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				// Document information
+				page.drawText('Informations Document:', {
+					x: 50,
+					y: pageHeight - 200,
+					size: 16,
+					font: helveticaBold,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Type: ${certificate.metadata.documentType}`, {
+					x: 50,
+					y: pageHeight - 230,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Fichier: ${certificate.metadata.fileName}`, {
+					x: 50,
+					y: pageHeight - 250,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Hash: ${certificate.documentHash}`, {
+					x: 50,
+					y: pageHeight - 270,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Commitment ID: ${certificate.metadata.commitmentId}`, {
+					x: 50,
+					y: pageHeight - 290,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Date de création: ${certificate.metadata.createdAt.toLocaleDateString('fr-FR')}`, {
+					x: 50,
+					y: pageHeight - 310,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				page.drawText(`Date de mise à jour: ${certificate.metadata.updatedAt.toLocaleDateString('fr-FR')}`, {
+					x: 50,
+					y: pageHeight - 330,
+					size: 12,
+					font: helveticaFont,
+					color: rgb(0, 0, 0),
+				});
+
+				// Add page number
+				page.drawText(`Page ${i + 2}`, {
+					x: pageWidth - 80,
+					y: 30,
+					size: 10,
+					font: helveticaFont,
+					color: rgb(0.5, 0.5, 0.5),
+				});
+			}
+
+			// Save the PDF
+			const pdfBytes = await pdfDoc.save();
+			return new Blob([pdfBytes], { type: 'application/pdf' });
+
+		} catch (error) {
+			console.error('Error generating combined certificates:', error);
+			throw error;
+		}
+	}
 }

src/front/Services/WatermarkService/index.ts

@@ -1,5 +1,6 @@
 export default class WatermarkService {
 	private static instance: WatermarkService;
+	private watermarkText: string = 'Certifié par LeCoffre';
 
 	public static getInstance(): WatermarkService {
 		if (!WatermarkService.instance) {
@@ -142,18 +143,29 @@ export default class WatermarkService {
 		ctx.save();
 
 		// Set watermark properties
-		ctx.fillStyle = 'rgba(128, 128, 128, 0.7)'; // Semi-transparent gray
-		ctx.font = '12px Arial';
+		ctx.fillStyle = 'rgba(204, 51, 51, 0.7)'; // Semi-transparent pale red (matching PDF color)
+		ctx.font = '10px Arial';
 		ctx.textAlign = 'right';
 		ctx.textBaseline = 'bottom';
 
-		// Position watermark in bottom-right corner
-		const text = 'Processed by LeCoffre';
-		const x = width - 10; // 10 pixels from right edge
-		const y = height - 10; // 10 pixels from bottom
+		// Position watermark in bottom-right corner with timestamp
+		const dateTime = new Date().toLocaleString('fr-FR', {
+			year: 'numeric',
+			month: '2-digit',
+			day: '2-digit',
+			hour: '2-digit',
+			minute: '2-digit'
+		});
 
-		// Add watermark text
-		ctx.fillText(text, x, y);
+		const lineHeight = 12; // Space between lines
+		const x = width - 20; // 20 pixels from right edge (matching PDF margins)
+		const y = 20; // 20 pixels from bottom (matching PDF margins)
+
+		// Add watermark text (second line - top)
+		ctx.fillText(this.watermarkText, x, y + lineHeight);
+
+		// Add date/time (first line - bottom)
+		ctx.fillText(dateTime, x, y);
 
 		// Restore state
 		ctx.restore();
@@ -168,7 +180,6 @@ export default class WatermarkService {
 		const { width, height } = page.getSize();
 
 		// Calculate watermark position (bottom-right corner)
-		const text = 'Processed by LeCoffre';
 		const dateTime = new Date().toLocaleString('fr-FR', {
 			year: 'numeric',
 			month: '2-digit',
@@ -182,7 +193,7 @@ export default class WatermarkService {
 
 		// Calculate text widths (approximate - pdf-lib doesn't have a direct method for this)
 		// Using a conservative estimate: ~6 points per character for 10pt font
-		const estimatedTextWidth1 = text.length * 6;
+		const estimatedTextWidth1 = this.watermarkText.length * 6;
 		const estimatedTextWidth2 = dateTime.length * 6;
 		const maxTextWidth = Math.max(estimatedTextWidth1, estimatedTextWidth2);
 
@@ -191,7 +202,7 @@ export default class WatermarkService {
 		const y = 20; // 20 points from bottom
 
 		// Add watermark text with transparency (first line)
-		page.drawText(text, {
+		page.drawText(this.watermarkText, {
 			x: x,
 			y: y + lineHeight, // Second line (top)
 			size: fontSize,