The proposed master thesis deals with design and implementation of application for editing of raster graphics for Android operating system. First of all, an overview of available software is shown. Based upon this overview, requirements for implemented software are formulated. Required theoretical knowledge providing foundation for implemented functions is summarized in the next chapter. Further Android operating system is introduced with respect to its deployment and other specific characteristics, which have direct impact on application development. The following part describes implemented application from end user perspective. User interface is described here together with application features. The last chapter is focused on implementati...