PDFBOX-5384: use workaround only if /ToUnicode is a stream due to failure with sample_fonts_solidconvertor.pdf

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1922173 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/font/PDFont.java

@@ -146,7 +146,8 @@ private CMap loadUnicodeCmap()
             {
                 String name = getName();
                 LOG.warn("Invalid ToUnicode CMap in font {}", name);
-                if (name != null && (name.startsWith("Tahoma") || name.startsWith("Verdana")))
+                if (toUnicode instanceof COSStream && name != null &&
+                        (name.startsWith("Tahoma") || name.startsWith("Verdana")))
                 {
                     // PDFBOX-5384: workaround inspired by PDF.js 15719 and 11242
                     return null;