diff --git a/src/pages/signature/signature.ts b/src/pages/signature/signature.ts
index 839457e..54335d2 100755
--- a/src/pages/signature/signature.ts
+++ b/src/pages/signature/signature.ts
@@ -564,6 +564,7 @@ function showProcessDetails(group: Group, groupId: number) {
                             // Ajouter le bouton de signature pour tous les documents non vierges en mode dev
                             const signButton = !isVierge ? `
                                 ${totalSignatures > 0 && signedCount < totalSignatures && 
+                                document.signatures.some((sig: DocumentSignature) => sig.member.name === currentUser.name) && 
                                 !document.signatures.find((sig: DocumentSignature) => sig.member.name === currentUser.name && sig.signed) ? `
                                     <button class="sign-button" onclick="signDocument(${document.id}, ${groupId}, true)">
                                         Signer le document
@@ -635,6 +636,7 @@ function showProcessDetails(group: Group, groupId: number) {
                                         const signButton = !isVierge ? `
                                             ${document.signatures.length > 0 && 
                                             document.signatures.filter((sig: DocumentSignature) => sig.signed).length < document.signatures.length && 
+                                            document.signatures.some((sig: DocumentSignature) => sig.member.name === currentUser.name) && 
                                             !document.signatures.find((sig: DocumentSignature) => sig.member.name === currentUser.name && sig.signed) ? `
                                                 <button class="sign-button" onclick="signDocument(${document.id}, ${groupId}, false)">
                                                     Signer le document
@@ -1583,7 +1585,7 @@ function signDocument(documentId: number, processId: number, isCommonDocument: b
                                                     <span class="file-icon">📄</span>
                                                     <span class="file-name">${file.name}</span>
                                                     <a href="${file.url}" class="download-link" download="${file.name}">
-                                                        <span class="download-icon">⬇��</span>
+                                                        <span class="download-icon">⬇</span>
                                                     </a>
                                                 </div>
                                             `).join('')