This research shows how to prepare polyvinyl alcohol (PVA) films with silver nanoparticles and how different amounts of these nanoparticles affect the films' properties. The silver nanoparticles (AgNPs), featuring a uniform spherical shape, were synthesised using the chemical reduction method. The concentration of AgNPs and the amount of the reducing agent were found to influence the structural and optical characteristics of the prepared films. Higher volumes of the reducing agent have resulted in the formation of larger silver nanoparticles. These factors affected the size of the silver nanoparticles and the specific absorption peak, which was between 420 and 435 nm, with the nanoparticles measuring between 20 and 32 nm in size. The UV-visible spectroscopy of PVA film samples with silver nanoparticles showed that the silver nanoparticles had a peak absorption in the 420-435 nm range. The FTIR spectroscopy showed that the silver nanoparticles do not chemically attach to the PVA structure, but instead, they fit into the matrix as small flaws. Still, they integrate into the matrix as structural imperfections. The present work aims to study the structural behaviour and particle size effect of Ag NPs dispersed in a polymer network and select the best conditions for synthesizing such nanostructures.