Remove White Spaces from the Data before Rendering to Image
The SheetRender class is capable of converting a worksheet to an image file with any specified attributes, for example, image format, paginated sheets, etc. Several image formats are supported, including BMP, GIF, JPG, TIFF, and EMF.
When you use the sheet-to-image feature, the output image has white/blank space, that is, a border, around it by default. You can remove this. Set the top, left, bottom, and right page setup margins for the source worksheet to 0 and specify ImageOrPrintOptions attributes accordingly.