Added pdfFileName prop

 # Changelog
 
+## 3.6.0
+
+- Added pdfFileName prop to PdfPreview Widget [Marcos Rodriguez]
+
 ## 3.5.0
 
 - Add decoration options to the PdfPreview Widget [Marcos Rodriguez]

@@ -28,6 +28,7 @@ class PdfPreview extends StatefulWidget {
     this.onShared,
     this.scrollViewDecoration,
     this.pdfPreviewPageDecoration,
+    this.pdfFileName,
   }) : super(key: key);
 
   /// Called when a pdf document is needed
@@ -69,6 +70,9 @@ class PdfPreview extends StatefulWidget {
   /// Decoration of _PdfPreviewPage
   final Decoration pdfPreviewPageDecoration;
 
+  /// Name of the PDF when sharing. It must include the extension.
+  final String pdfFileName;
+
   @override
   _PdfPreviewState createState() => _PdfPreviewState();
 }
@@ -365,7 +369,11 @@ class _PdfPreviewState extends State<PdfPreview> {
   }
 
   Future<void> _print() async {
-    final result = await Printing.layoutPdf(onLayout: widget.build);
+    final result = await Printing.layoutPdf(
+      onLayout: widget.build,
+      name: widget.pdfFileName,
+      format: pageFormat,
+    );
 
     if (result && widget.onPrinted != null) {
       widget.onPrinted(context);
@@ -383,7 +391,8 @@ class _PdfPreviewState extends State<PdfPreview> {
     final bounds = Rect.fromPoints(topLeft, bottomRight);
 
     final bytes = await widget.build(pageFormat);
-    final result = await Printing.sharePdf(bytes: bytes, bounds: bounds);
+    final result = await Printing.sharePdf(
+        bytes: bytes, bounds: bounds, filename: widget.pdfFileName);
 
     if (result && widget.onShared != null) {
       widget.onShared(context);

@@ -4,7 +4,7 @@ description: Plugin that allows Flutter apps to generate and print documents to
 homepage: https://github.com/DavBfr/dart_pdf/tree/master/printing
 repository: https://github.com/DavBfr/dart_pdf
 issue_tracker: https://github.com/DavBfr/dart_pdf/issues
-version: 3.5.0
+version: 3.6.0
 
 environment:
   sdk: ">=2.3.0 <3.0.0"