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Co-authored-by: Copilot <copilot@github.com>

lib/features/operations/ui/widgets/operation_files_section.dart

@@ -13,7 +13,6 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:flux/features/operations/models/operation_model.dart';
 import 'package:flux/features/attachments/models/attachment_model.dart';
 import 'package:pdf/widgets.dart' as pw;
-import 'package:pdf/pdf.dart' as p; // Se ti serve formattazione core
 import 'package:pdfx/pdfx.dart' as px; // Isoliamo pdfx
 
 class _ExportItem {
@@ -281,7 +280,7 @@ class _OperationFilesSectionState extends State<OperationFilesSection> {
         if (fileBytes == null) continue;
 
         // Recuperiamo il nome che l'utente ha (magari) già impostato
-        final baseName = file.name ?? 'Documento';
+        final baseName = file.name;
 
         if (file.extension == 'pdf') {
           final document = await px.PdfDocument.openData(fileBytes);