I present a determination of the photon PDF from a fit to the recent ATLAS
measurements of high-mass Drell-Yan lepton-pair production at s​=8
TeV. This analysis is based on the {\tt xFitter} framework interfaced to the
{\tt APFEL} program, that accounts for NLO QED effects, and to the {\tt
aMCfast} code to account for the photon-initiated contributions within {\tt
MadGraph5\_aMC@NLO}. The result is compared with other recent determinations of
the photon PDF finding a general good agreement.Comment: 8 pages, 6 figures, Proceedings of the PHOTON'17 worksho