Add Google Fonts fallback to Helvetica

@@ -70,7 +70,7 @@ abstract class PdfBaseCache {
     final bytes = await _download(uri, headers: headers);
     final bytes = await _download(uri, headers: headers);
 
 
     if (bytes == null) {
     if (bytes == null) {
-      throw FlutterError('Unable to find the asset $name');
+      throw FlutterError('Unable to download $uri');
     }
     }
 
 
     if (cache) {
     if (cache) {

@@ -19,7 +19,7 @@ class DownloadbleFont {
   static var cache = PdfBaseCache.defaultCache;
   static var cache = PdfBaseCache.defaultCache;
 
 
   /// Get the font to use in a Pdf document
   /// Get the font to use in a Pdf document
-  Future<TtfFont> getFont({
+  Future<Font> getFont({
     PdfBaseCache? pdfCache,
     PdfBaseCache? pdfCache,
     bool protect = false,
     bool protect = false,
     Map<String, String>? headers,
     Map<String, String>? headers,
@@ -38,6 +38,8 @@ class DownloadbleFont {
     }
     }
 
 
     pdfCache ??= PdfBaseCache.defaultCache;
     pdfCache ??= PdfBaseCache.defaultCache;
+
+    try {
       final bytes = await pdfCache.resolve(
       final bytes = await pdfCache.resolve(
         name: name,
         name: name,
         uri: Uri.parse(url),
         uri: Uri.parse(url),
@@ -49,5 +51,9 @@ class DownloadbleFont {
         bytes.buffer.asByteData(bytes.offsetInBytes, bytes.lengthInBytes),
         bytes.buffer.asByteData(bytes.offsetInBytes, bytes.lengthInBytes),
         protect: protect,
         protect: protect,
       );
       );
+    } catch (e) {
+      print('$e\nError loading $name, fallback to Helvetica.');
+      return Font.helvetica();
+    }
   }
   }
 }
 }