A cloud streaming server (110, 300), comprising: a code receiving unit configured to receive a first code (410, 510, 610) corresponding to an application result screen created by a web application server in response to an user request, wherein the first code (410, 510, 610) is written using a library including instructions to be processed by a web browser and further includes information for rendering an application result screen via the web browser from the web application server, and wherein the first code (410, 510, 610) includes an animation code about an animation effect applied to an image region, when an application is executed and an image region attribute information about images to which the animation effect is applied; a capturing unit configured to create a capture image by using image region attribute information included in the first code, wherein the capturing unit directly reads and acquires an image corresponding to the image region attribute information from information received from the web application server without performing a process of capturing the image, and wherein the capturing unit is further configured to create the capture image by rendering only a part corresponding to the capture image in the first code by using the image region attribute information, and wherein the capturing unit is further configured to create the capture image by rendering only a part of the application result including the capture image, which is a part of the entire application result screen, an encoding unit configured to perform still image encoding of the capture image by using a still image compression technique to generate a still-image-encoded capture image; a code converting unit configured to convert the first code (410, 510, 610) into a second code (420, 520, 620) including a capture image information and an animation information, wherein the image region attribute information of the first code is converted into the capture image information corresponding to the still-image-encoded capture image and the animation execution code of the first code is converted into the animation information to be applied to the still image encoded capture image; and a sending unit configured to perform a cloud streaming service based on a still image by transmitting, to a user terminal, the still-image-encoded capture image and the second code (420, 520, 620) created to include animation information through conversion of the first code by the code converting unit such that the user terminal creates the application result screen by image rendering. a code receiving unit configured to receive a first code (410, 510, 610) corresponding to an application result screen created by a web application server in response to an user request, wherein the first code (410, 510, 610) is written using a library including instructions to be processed by a web browser and further includes information for rendering an application result screen via the web browser from the web application server, and wherein the first code (410, 510, 610) includes an animation code about an animation effect applied to an image region, when an application is executed and an image region attribute information about images to which the animation effect is applied; a capturing unit configured to create a capture image by using image region attribute information included in the first code, wherein the capturing unit directly reads and acquires an image corresponding to the image region attribute information from information received from the web application server without performing a process of capturing the image, and wherein the capturing unit is further configured to create the capture image by rendering only a part corresponding to the capture image in the first code by using the image region attribute information, and wherein the capturing unit is further configured to create the capture image by rendering only a part of the application result including the capture image, which is a part of the entire application result screen, an encoding unit configured to perform still image encoding of the capture image by using a still image compression technique to generate a still-image-encoded capture image; a code converting unit configured to convert the first code (410, 510, 610) into a second code (420, 520, 620) including a capture image information and an animation information, wherein the image region attribute information of the first code is converted into the capture image information corresponding to the still-image-encoded capture image and the animation execution code of the first code is converted into the animation information to be applied to the still image encoded capture image; and a sending unit configured to perform a cloud streaming service based on a still image by transmitting, to a user terminal, the still-image-encoded capture image and the second code (420, 520, 620) created to include animation information through conversion of the first code by the code converting unit such that the user terminal creates the application result screen by image rendering.