Computer technology can help people to sand digital data easier, but the technology is still a problem such as digital data can be easily duplicated. The protection of copyrighted digital data or digital product is not an easy thing, to resolve this problem, we need protection of digital product. One form of protection of digital products that watermarking techniques. Watermarking is the study of how to hide a digital data on other file. Watermarking has good quality if it has good robustness from various forms of attacks to images such as geometrical attack. In this research, will be analyzed image watermarking least significant bit methods if this image watermarking is given a geometric transform operation such as rotation, cropping and scaling, this analysis has aim to know robustness of image watermarking LSB. The results of this reasearch are expected to provide input to development of watermarking science. Key words: image watermarking, geometrical attack, least significant bit (LSB)