This diploma thesis deals with the issue of modifying marketing mix within a selected Slovak printing company and its adjustments for a successful entry into the Czech online consumer market with photo products. The thesis is divided into three main parts – The Theoretical Part, The Analytical Part and The Proposal Part. The theoretical part of this thesis contains a summary and explanation of the theoretical foundations which are important for a correct understanding of the problem. The analytical part of this thesis is focused on a closer introduction to the chosen company, this includes multiple analysis of the external and internal business environments, as well as marketing research. The proposal part of this thesis is dedicated to my ...