Measurements are presented of production properties and couplings of the recently discovered Higgs boson using the decays into boson pairs, H→γγH→γγ, H→ZZ*→4ℓH→ZZ*→4ℓ and H→WW*→ℓνℓνH→WW*→ℓνℓν. The results are based on the complete pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at centre-of-mass energies of √s=7 TeV and √s=8 TeV, corresponding to an integrated luminosity of about 25 fb−1. Evidence for Higgs boson production through vector-boson fusion is reported. Results of combined fits probing Higgs boson couplings to fermions and bosons, as well as anomalous contributions to loop-induced production and decay modes, are presented. All measurements are consistent with expectations for the Standard Model Higgs boson