This paper covers specificity of retouching techiniques inside the conservation and restoration profession, with a special emphasis on retouching techniques that are performed on paper. The paper is divided into nine chapters of which seven chapters cover elaboration of the subject and eighth and ninth chapter include bibliography and a list of images and tables. After an introduction, which summarises the definition of retouching, follows a detailed insight into the problem. Second chapter elaborates a historical context of retouching and closely examines a development of retouching on paper through history. Third chapter defines ethical principles namely reversibility, falsification, minimal intervention and fourth chapter deals with practice of retouching, common materials used for retouching and specific problems that appear during the process. Fifth chapter elaborates smilarities and differences between retouching of works of art on paper and on canvas and also covers specifc nature of retouching of archival material and books. For this paper conservation and restoration work was done on the gouache painting made on paper support which is described in the sixth chapter. All the steps of conservation and restoration carried out are described with a special emphasis on the execution of retouching on the work of art. Detailed photodocumentation of the whole process is made and included in the paper. Thematic part of the paper ends with a conclusion.