Polyester film and method of manufacturing polyester film

A polyester film comprising:

• a base film;
• and
• at least one image receiving layer which is disposed on at least one surface of the base film,
• wherein the base film contains a polyester and titanium oxide particles, the mass-based content of the titanium oxide particles in the base film satisfies Formulae 1-1 and 1-2 on the assumption that the thickness of the base film is T1 μm, a surface roughness standard deviation Rq of a surface of the base film on which the image receiving layer is disposed is 0.01 μm to 0.12 μm, and a cross section in a thickness direction orthogonal to a plane direction of the base film has voids whose average area per void is 0.01 μm2/void to 0.10 μm2/void, and
• a surface roughness standard deviation Rq of an outermost surface of the image receiving layer is 0.01 μm to 0.1 μm,
• 1200/T1≤Content of Titanium Oxide Particles in Base Film≤600/T1+16 Formula 1-1
• 40≤T1≤400 Formula 1-2.