Which font is used in the document?
$ pdffonts loRaBackscatter.pdf
name type emb sub uni object ID
------------------------------------ ----------------- --- --- --- ---------
OZJJTN+LinBiolinumTB Type 1 yes yes yes 116 0
LWEMPN+LinBiolinumT Type 1 yes yes yes 118 0
LWEMPN+LinBiolinumT Type 1 yes yes yes 119 0
LILBVD+LinLibertineT Type 1 yes yes yes 120 0
LILBVD+LinLibertineT Type 1 yes yes yes 121 0
...