I'm using this journal's style files and I can see that the
.cls file defines paper size as
a4paper in the following line:
However, compiling any document with this class uses a US letter paper, which crops the bottom. I can't even use
a4paper as an option. What should I change to get A4 sizing?
If you want an MWE, just try recompiling the
gjilguid2e.tex that is present in the zip file. The included PDF file is A4, but upon recompiling, it switches to US letter for me.