diff --git a/pdfminer/pdffont.py b/pdfminer/pdffont.py
index be9ef8b..ec7bdee 100644
--- a/pdfminer/pdffont.py
+++ b/pdfminer/pdffont.py
@@ -20,7 +20,7 @@ from .pdftypes import dict_value
 from .pdftypes import int_value
 from .pdftypes import list_value
 from .pdftypes import num_value
-from .pdftypes import resolve1
+from .pdftypes import resolve1, resolve_all
 from .pdftypes import stream_value
 from .psparser import KWD
 from .psparser import LIT
@@ -477,7 +477,7 @@ class PDFFont(object):
 
     def __init__(self, descriptor, widths, default_width=None):
         self.descriptor = descriptor
-        self.widths = widths
+        self.widths = resolve_all(widths)
         self.fontname = resolve1(descriptor.get('FontName', 'unknown'))
         if isinstance(self.fontname, PSLiteral):
             self.fontname = literal_name(self.fontname)
@@ -487,7 +487,7 @@ class PDFFont(object):
         self.italic_angle = num_value(descriptor.get('ItalicAngle', 0))
         self.default_width = default_width or num_value(descriptor.get('MissingWidth', 0))
         self.leading = num_value(descriptor.get('Leading', 0))
-        self.bbox = list_value(descriptor.get('FontBBox', (0, 0, 0, 0)))
+        self.bbox = list_value(resolve_all(descriptor.get('FontBBox', (0, 0, 0, 0))))
         self.hscale = self.vscale = .001
         return