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Python3 matplotlib 2.0.2 with Times New Roman misses unicode minus sign in pdf #9139
Description
Bug report
With matplotlib 2.0.2 with python3.4.3, and "Times New Roman" font, saving figure as pdf file misses the unicode minus sign in the tick labels.
If I use pyplot.show() to directly show the figure, the figure is correct.
Also, only this particular combination of matplotlib and python version has this issue. I tried:
- python2.7.6, matplotlib 2.0.2
- python3.4.3, matplotlib 1.5.3
And they both work fine. Therefore I think it is not likely an issue with my environment, but rather a bug. But maybe I am missing something?
Code for reproduction
import matplotlib
from matplotlib import pyplot as plt
matplotlib.rcParams['font.family'] = 'Times New Roman'
plt.plot([-1, 0, 1], [-1, 0, 1])
# plt.show()
plt.savefig('draw.pdf')Actual outcome
When I open the file using Adobe Acrobat Reader DC, it says
An error exists on this page. Acrobat may not display the page correctly. Please contact the person who created the PDF document to correct the problem.
Matplotlib version
- Operating System: Ubuntu 14.04.4
- Matplotlib Version: 2.0.2
- Python Version: 3.4.3
- Jupyter Version (if applicable):
- Other Libraries:
Executed in virtualenv. pip freeze output
cycler==0.10.0
matplotlib==2.0.2
numpy==1.13.1
pyparsing==2.2.0
python-dateutil==2.6.1
pytz==2017.2
six==1.10.0
If related, the LANG env var is set to "C". I also tried "en_US.UTF-8" and it didn't help.
Reacted by Niall Murphy, Taras, S.Ouchene and Max Maximov
Activity
tacaswell commentedon Sep 1, 2017
I wonder if this will be fixed by #9059 and this is an issue embedding the fonts?
gaomy3832 commentedon Sep 1, 2017
Thanks for the reply.
I have checked out and tried the current master head 751c9af. It does fix the minus sign issue, however the labels are now mistakenly in bold. I attach the two pdf files below. draw2.pdf is from python2 and draw3.pdf is from python3, with exactly the same code as included before. Is this an expected result?
draw2.pdf
draw3.pdf
tacaswell commentedon Sep 1, 2017
No, they should be the same
jsalort commentedon Jan 11, 2018
I have come into a problem which might be related to this issue.
I seem to have a problem generating PDF files with Times LaTeX lowercase greek letters in labels. The plot shows fine on screen but the generated PDF is broken. If you think this is unrelated to the present issue, please tell me so that I open another issue.
Essai.pdf
This also yields an error message in Adobe Acrobat Reader DC:
I am running following versions:
matplotlib.version == '2.1.1'
python version == '3.6.4'
jkseppan commentedon Jul 27, 2020
@jsalort:
This is likely the same as #16087 which has a proposed fix in #18080.
jkseppan commentedon Jul 27, 2020
The minus sign issue was probably fixed by #9059 and the boldface issue is something separate. I cannot reproduce it with current master, so please open a new issue if it is still happening.
Qu246 commentedon Apr 10, 2023
Hi
I am encountering a problem.
Using Times New Roman font family, I cannot use \prime symbol anymore in my labels.
I have understand that soe font family have issue with symbols susch as U+2032
But how can I deal with this using Times New Roman ?
Thanks
oscargus commentedon Apr 10, 2023
@Qu246 The easiest way is probably just to use
'instead. If the symbol is not in the font, it is quite hard to something from Matplotlib's side (although we have a font fallback now, so if you supply several fonts it will select the first font that has the symbol).