A multilayer biaxially oriented white polyester film comprising at least three polyester layers, respectively a core layer and two outer layers that can be same or different, and containing TiO 2 particles, wherein: (i) at least one layer includes a PolyEthyleneTerephthalate PET whose: ∘ number average molecular weight is comprised within the following ranges given herein in an increasing order of preference 18500-40000];;; ∘ intrinsic viscosity IV, in 1,2-dichlorobenzene/phenol 50/50, calculated according to the standard ISO 1628/5, is included within the following ranges given herein in an increasing order of preference and in dL/g: [≥0.70]; [≥0.75]; [≥0.78]; [0.78-1.20]; ∘ carboxyl group content is comprised between the following ranges given herein in an increasing order of preference and in eq/T: [≤30]; [≤25]; [≤21]; [≤15];; (ii) the core layer includes TiO 2 particles in the following concentration ranges given herein in an increasing order of preference and in % w/w: [0.1-40]; [0.5-30];;; (iii) the intrinsic viscosity IV of the film is comprised between the following ranges given herein in an increasing order of preference and in dl/g: [0.5-0.85]; [0.55-0.8]; [0.6-0.75]; [0.65-0.75]; (iv) an endothermic peak temperature, Tmeta measured on the film is comprised between 180-230°C, preferably between 180-220°C; (v) at least one light stabilizer is added, preferably in at least one of the outer layers, in a total concentration comprised between the following ranges given herein in an increasing order of preference and in % w/w: [0.1-35]; [0.2-25]; [0.3-20]; [0.4-10]; [0.5-5]; (vi) at least one of the outer layers contains TiO 2 particles in a concentration comprised between the following ranges given herein in an increasing order of preference and in % w/w: [<5]; [<4]; [0.01-3]. (i) at least one layer includes a PolyEthyleneTerephthalate PET whose: ∘ number average molecular weight is comprised within the following ranges given herein in an increasing order of preference 18500-40000];;; ∘ intrinsic viscosity IV, in 1,2-dichlorobenzene/phenol 50/50, calculated according to the standard ISO 1628/5, is included within the following ranges given herein in an increasing order of preference and in dL/g: [≥0.70]; [≥0.75]; [≥0.78]; [0.78-1.20]; ∘ carboxyl group content is comprised between the following ranges given herein in an increasing order of preference and in eq/T: [≤30]; [≤25]; [≤21]; [≤15];; ∘ number average molecular weight is comprised within the following ranges given herein in an increasing order of preference 18500-40000];;; ∘ intrinsic viscosity IV, in 1,2-dichlorobenzene/phenol 50/50, calculated according to the standard ISO 1628/5, is included within the following ranges given herein in an increasing order of preference and in dL/g: [≥0.70]; [≥0.75]; [≥0.78]; [0.78-1.20]; ∘ carboxyl group content is comprised between the following ranges given herein in an increasing order of preference and in eq/T: [≤30]; [≤25]; [≤21]; [≤15];; (ii) the core layer includes TiO 2 particles in the following concentration ranges given herein in an increasing order of preference and in % w/w: [0.1-40]; [0.5-30];;; (iii) the intrinsic viscosity IV of the film is comprised between the following ranges given herein in an increasing order of preference and in dl/g: [0.5-0.85]; [0.55-0.8]; [0.6-0.75]; [0.65-0.75]; (iv) an endothermic peak temperature, Tmeta measured on the film is comprised between 180-230°C, preferably between 180-220°C; (v) at least one light stabilizer is added, preferably in at least one of the outer layers, in a total concentration comprised between the following ranges given herein in an increasing order of preference and in % w/w: [0.1-35]; [0.2-25]; [0.3-20]; [0.4-10]; [0.5-5]; (vi) at least one of the outer layers contains TiO 2 particles in a concentration comprised between the following ranges given herein in an increasing order of preference and in % w/w: [<5]; [<4]; [0.01-3].