I am trying to use Open Sans with pandoc but always get the Following error when I try to generate the PDF using XeLaTeX:

xdvipdfmx:fatal: This font using the "seac" command for accented characters...

Output file removed.

I have installed Open Sans directly from Google Fonts.

YAML Meta:

papersize: b5
- top=0.8in
- right=1.4in
- bottom=0.8in
- left=1.4in
linestretch: 1.5
fontsize: 12pt
mainfont: Open Sans



The command I use to generate the File via pandoc:

pandoc -o test.pdf -H headers.tex yaml.txt Book.md --toc --toc-depth=2 --css epub.css --epub-cover-image=Cover.jpg --pdf-engine ~/bin/xelatex

If I remove the mainfont line from the yaml meta and add the latex font headers instead I get a different error:

Error producing PDF.
! Dimension too large.

These are the headers which cause the error:


I am not very familiar with LaTeX so this error might be caused because I am using a definition intented for pdflatex with xelatex

1 Answer 1


Don't use


with xelatex. This commands are only for pdflatex. Do something like this instead:

\setmainfont{Open Sans}
  • I get the same error as when I define it with the mainfont yaml directive xdvipdfmx:fatal: This font using the "seac" command for accented characters...
    – Snowball
    Commented Sep 21, 2018 at 11:02
  • You are above writing that you are using \usepackage[T1]{fontenc} and the opensans package. Don't do this! Commented Sep 21, 2018 at 11:04
  • As I wrote, I have tried three different ways. First the pdflatex way \usepackage[T1]{fontenc}. Than I removed that and used your approach which causes the above error. And last but not least I completely removed any latex code and just wrote mainfont: Open Sans within the yaml config which causes the same error as using your code. The reason for this is that pandoc internally transcribes mainfont: Open Sans into \usepackage{fontspec} \setmainfont{Open Sans} thus its causing the same error no matter which of the both methods I use
    – Snowball
    Commented Sep 21, 2018 at 11:32
  • Ah. Well your description is rather confusing. The error means that xelatex is finding and using a type1 font. Try \setmainfont{OpenSans-Regular.ttf} to force the use of the ttf (assuming that you have the font as ttf). Commented Sep 21, 2018 at 11:38

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