Add more warnings on type1 fonts

@@ -12,6 +12,7 @@
 - Add Footer Widget
 - Fix Page orientation
 - Add Ascii85 test
+- Add more warnings on type1 fonts
 
 ## 1.3.23
 

@@ -146,6 +146,7 @@ abstract class PdfFont extends PdfObject {
 Can not decode the string to Latin1.
 This font does not support Unicode characters.
 If you want to use strings other than Latin strings, use a TrueType (TTF) font instead.
+See https://github.com/DavBfr/dart_pdf/issues/76
 ---------------------------------------------''');
       rethrow;
     }

@@ -20,7 +20,12 @@ class PdfType1Font extends PdfFont {
   /// Constructs a [PdfTtfFont]
   PdfType1Font._create(PdfDocument pdfDocument, this.fontName, this.ascent,
       this.descent, this.widths)
-      : super._create(pdfDocument, subtype: '/Type1');
+      : assert(() {
+          print(
+              '$fontName has no Unicode support see https://github.com/DavBfr/dart_pdf/issues/76');
+          return true;
+        }()),
+        super._create(pdfDocument, subtype: '/Type1');
 
   /// The font's real name
   @override