diff --git a/poppler/GfxFont.cc b/poppler/GfxFont.cc
index 114c797..7713ce2 100644
--- a/poppler/GfxFont.cc
+++ b/poppler/GfxFont.cc
@@ -448,14 +448,13 @@ CharCodeToUnicode *GfxFont::readToUnicodeCMap(Dict *fontDict, int nBits,
 }
 
 void GfxFont::findExtFontFile() {
  static char *type1Exts[] = { ".pfa", ".pfb", ".ps", "", NULL };
-  static char *ttExts[] = { ".ttf", ".ttc", NULL };
+  static char *ttExts[] = { ".ttf", ".ttc", ".otf", NULL};
 
   if (name) {
     if (type == fontType1) {
      extFontFile = globalParams->findFontFile(name, type1Exts);
     } else if (type == fontTrueType) {
      extFontFile = globalParams->findFontFile(name, ttExts);
     }
   }
 }
diff --git a/poppler/GlobalParams.cc b/poppler/GlobalParams.cc
index 2e11bb0..1e0ddc0 100644
--- a/poppler/GlobalParams.cc
+++ b/poppler/GlobalParams.cc
@@ -1247,7 +1247,7 @@ DisplayFontParam *GlobalParams::getDisplayFont(GfxFont *font) {
         ext = strrchr((char*)s,'.');
         if (!ext)
           continue;
-        if (!strncasecmp(ext,".ttf",4) || !strncasecmp(ext, ".ttc", 4))
+        if (!strncasecmp(ext,".ttf",4) || !strncasecmp(ext, ".ttc", 4) || !strncasecmp(ext, ".otf", 4))
         {
           dfp = new DisplayFontParam(fontName->copy(), displayFontTT);  
           dfp->tt.fileName = new GooString((char*)s);