1. A viewer device for a digital comic comprising: an information acquisition unit that acquires a digital comic in a file format for a digital comic viewed on a viewer device, the file format including a high-definition image of an entire page for each page of a comic, speech balloon information including information of a speech balloon region that indicates a region of a speech balloon in which a dialogue of a character of the comic is placed within the image, first text information indicating a dialogue within each speech balloon, the first text information being correlated with each speech balloon, and first display control information including positional information and a transition order of a predetermined anchor point so as to enable the image of the entire page to be viewed on a monitor of the viewer device in a scroll view; a display unit; an image display control unit that scroll-reproduces or panel-reproduces the image of each page on a screen of the display unit based on the display control information of the acquired digital comic; a letter display control unit that displays a letter corresponding to the text information of the acquired digital comic instead of an original letter within the speech balloon region in the image displayed on the screen of the display unit based on the speech balloon information and the text information of the acquired digital comic; and a voice reproduction section that synthesizes a voice for reading the letter corresponding to the text information based on an attribute of the character, an attribute of the speech balloon, or an attribute of the dialogue, and outputs the voice.
1. A viewer device for a digital comic comprising: an information acquisition unit that acquires a digital comic in a file format for a digital comic viewed on a viewer device, the file format including a high-definition image of an entire page for each page of a comic, speech balloon information including information of a speech balloon region that indicates a region of a speech balloon in which a dialogue of a character of the comic is placed within the image, first text information indicating a dialogue within each speech balloon, the first text information being correlated with each speech balloon, and first display control information including positional information and a transition order of a predetermined anchor point so as to enable the image of the entire page to be viewed on a monitor of the viewer device in a scroll view; a display unit; an image display control unit that scroll-reproduces or panel-reproduces the image of each page on a screen of the display unit based on the display control information of the acquired digital comic; a letter display control unit that displays a letter corresponding to the text information of the acquired digital comic instead of an original letter within the speech balloon region in the image displayed on the screen of the display unit based on the speech balloon information and the text information of the acquired digital comic; and a voice reproduction section that synthesizes a voice for reading the letter corresponding to the text information based on an attribute of the character, an attribute of the speech balloon, or an attribute of the dialogue, and outputs the voice. 12. The viewer device for a digital comic according to claim 1 , wherein the first text information includes first accompanying information of at least one of a volume and a reading speed of a voice for the dialogue within each speech balloon.