8. The computer program product of claim 7 , wherein the non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: the computer readable program code for comparing text in a slide of the existing presentation to text in a slide of the modified presentation to detect discrepancies in the text of both slides, comprises: computer readable program code for exporting both the existing presentation to a rasterization of the existing presentation, and the modified presentation to a rasterization of the modified presentation; and, computer readable program code for comparing text in a slide of the rasterization of the existing presentation to text in a slide of the rasterization of the modified presentation to detect discrepancies in the text of both slides.
8. The computer program product of claim 7 , wherein the non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: the computer readable program code for comparing text in a slide of the existing presentation to text in a slide of the modified presentation to detect discrepancies in the text of both slides, comprises: computer readable program code for exporting both the existing presentation to a rasterization of the existing presentation, and the modified presentation to a rasterization of the modified presentation; and, computer readable program code for comparing text in a slide of the rasterization of the existing presentation to text in a slide of the rasterization of the modified presentation to detect discrepancies in the text of both slides. 10. The computer program product of claim 8 , wherein the non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: the computer readable program code for comparing text in a slide of the existing presentation to text in a slide of the modified presentation to detect discrepancies in the text of both slides, comprises: computer readable program code for subdividing the slide of the existing presentation and a corresponding slide of the modified presentations into respective subregions; and, computer readable program code for each subregion, comparing text in the subregion of a slide of the existing presentation to text in a corresponding subregion of a slide of the modified presentation to detect discrepancies in the text of both subregions.