Update FontProgram#setBold method.

Author: pavel-alay

io/src/main/java/com/itextpdf/io/font/FontProgram.java

@@ -215,7 +215,11 @@ protected void setFixedPitch(boolean isFixedPitch) {
     }
 
     protected void setBold(boolean isBold) {
-        fontNames.setMacStyle(fontNames.getMacStyle() | FontNames.BOLD_FLAG);
+        if (isBold) {
+            fontNames.setMacStyle(fontNames.getMacStyle() | FontNames.BOLD_FLAG);
+        } else {
+            fontNames.setMacStyle(fontNames.getMacStyle() & (~FontNames.BOLD_FLAG));
+        }
     }
 
     protected void setBbox(int[] bbox) {

io/src/test/java/com/itextpdf/io/font/FontFactoryTest.java renamed to io/src/test/java/com/itextpdf/io/font/FontProgramTest.java

@@ -8,7 +8,7 @@
 import java.io.IOException;
 
 @Category(UnitTest.class)
-public class FontFactoryTest {
+public class FontProgramTest {
 
     @Test
     public void exceptionMessageTest() throws IOException {
@@ -18,4 +18,13 @@ public void exceptionMessageTest() throws IOException {
             Assert.assertEquals("font.file some-font.ttf not.found", ex.getMessage());
         }
     }
+
+    @Test
+    public void boldTest() throws IOException {
+        FontProgram fp = FontFactory.createFont(FontConstants.HELVETICA);
+        fp.setBold(true);
+        Assert.assertTrue("Bold expected", (fp.getPdfFontFlags() & (1 << 18)) != 0);
+        fp.setBold(false);
+        Assert.assertTrue("Not Bold expected", (fp.getPdfFontFlags() & (1 << 18)) == 0);
+    }
 }