Fix Type1 font widths

 # Changelog
 
+## 3.10.2
+
+- Fix Type1 font widths
+
 ## 3.10.1
 
 - Fix web debug build

@@ -47,7 +47,6 @@ abstract class PdfFont extends PdfObjectDict {
       stdHW: 84,
       stdVW: 106,
       isFixedPitch: true,
-      missingWidth: 600,
     );
   }
 
@@ -63,7 +62,6 @@ abstract class PdfFont extends PdfObjectDict {
       stdHW: 51,
       stdVW: 51,
       isFixedPitch: true,
-      missingWidth: 600,
     );
   }
 
@@ -80,7 +78,6 @@ abstract class PdfFont extends PdfObjectDict {
       isFixedPitch: true,
       stdHW: 84,
       stdVW: 106,
-      missingWidth: 600,
     );
   }
 
@@ -97,7 +94,6 @@ abstract class PdfFont extends PdfObjectDict {
       italicAngle: -12,
       stdHW: 51,
       stdVW: 51,
-      missingWidth: 600,
     );
   }
 
@@ -280,9 +276,6 @@ See https://github.com/DavBfr/dart_pdf/wiki/Fonts-Management
   /// Spans the distance between the baseline and the lowest descending glyph
   double get descent;
 
-  /// Default width of a glyph
-  static const double defaultGlyphWidth = 0.600;
-
   /// Internal units per
   int get unitsPerEm;
 

@@ -42,7 +42,7 @@ class PdfType1Font extends PdfFont {
       required int stdHW,
       required int stdVW,
       bool isFixedPitch = false,
-      int? missingWidth,
+      this.missingWidth = 0.600,
       this.widths = const <double>[]})
       : assert(() {
           // ignore: avoid_print
@@ -54,22 +54,26 @@ class PdfType1Font extends PdfFont {
     params['/BaseFont'] = PdfName('/$fontName');
     if (settings.version.index >= PdfVersion.pdf_1_5.index) {
       params['/FirstChar'] = const PdfNum(0);
-      params['/LastChar'] = const PdfNum(256);
-      params['/Widths'] = PdfArray.fromNum(widths.map((e) => e * 1000));
+      params['/LastChar'] = const PdfNum(255);
+      if (widths.isNotEmpty) {
+        params['/Widths'] =
+            PdfArray.fromNum(widths.map((e) => (e * unitsPerEm).toInt()));
+      } else {
+        params['/Widths'] = PdfArray.fromNum(
+            List<int>.filled(256, (missingWidth * unitsPerEm).toInt()));
+      }
 
       final fontDescriptor = PdfObjectDict(pdfDocument, type: '/FontDescriptor')
         ..params['/FontName'] = PdfName('/$fontName')
         ..params['/Flags'] = PdfNum(32 + (isFixedPitch ? 1 : 0))
         ..params['/FontBBox'] = PdfArray.fromNum(fontBBox)
-        ..params['/Ascent'] = PdfNum((ascent * 1000).toInt())
-        ..params['/Descent'] = PdfNum((descent * 1000).toInt())
+        ..params['/Ascent'] = PdfNum((ascent * unitsPerEm).toInt())
+        ..params['/Descent'] = PdfNum((descent * unitsPerEm).toInt())
         ..params['/ItalicAngle'] = PdfNum(italicAngle)
         ..params['/CapHeight'] = PdfNum(capHeight)
         ..params['/StemV'] = PdfNum(stdVW)
-        ..params['/StemH'] = PdfNum(stdHW);
-      if (missingWidth != null) {
-        fontDescriptor.params['/MissingWidth'] = PdfNum(missingWidth);
-      }
+        ..params['/StemH'] = PdfNum(stdHW)
+        ..params['/MissingWidth'] = PdfNum((missingWidth * unitsPerEm).toInt());
 
       params['/FontDescriptor'] = fontDescriptor.ref();
     }
@@ -90,6 +94,9 @@ class PdfType1Font extends PdfFont {
   /// Width of each glyph
   final List<double> widths;
 
+  /// Default width of a glyph
+  final double missingWidth;
+
   @override
   PdfFontMetrics glyphMetrics(int charCode) {
     if (!isRuneSupported(charCode)) {
@@ -98,12 +105,11 @@ class PdfType1Font extends PdfFont {
     }
 
     return PdfFontMetrics(
-        left: 0,
-        top: descent,
-        right: charCode < widths.length
-            ? widths[charCode]
-            : PdfFont.defaultGlyphWidth,
-        bottom: ascent);
+      left: 0,
+      top: descent,
+      right: charCode < widths.length ? widths[charCode] : missingWidth,
+      bottom: ascent,
+    );
   }
 
   @override

@@ -6,7 +6,7 @@ issue_tracker: https://github.com/DavBfr/dart_pdf/issues
 screenshots:
   - description: 'Example of a generated document'
     path: example.jpg
-version: 3.10.1
+version: 3.10.2
 
 environment:
   sdk: ">=2.18.0 <3.0.0"