Bug summary

Large TrueType serif font does not render correctly when saving in .pdf

Interestingly, the bug does not happen when:

• saving in .png
• using default font size
• using sans-serif font
• using type 3 font

Code for reproduction

import matplotlib as mpl
import matplotlib.pyplot as plt

for param in [3, 42]:
    mpl.rcParams['pdf.fonttype'] = param
    mpl.rcParams["font.family"] = "serif"
    mpl.rcParams["font.size"] = 20

    fig = plt.figure()
    plt.plot([0, 1])
    plt.title('This is the title')

    fig.savefig('save_%d.pdf' % param)
    plt.close(fig)

Actual outcome
save_42.pdf

Expected outcome
save_3.pdf

Matplotlib version

Matplotlib 2.0.0 installed with conda (same behavior with pip)

System version
Linux-3.16.0-4-amd64-x86_64-with-debian-8.7
Python 3.5.2 |Continuum Analytics, Inc.| (default, Jul 2 2016, 17:53:06)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]