large white border when rendtion

Question

Hi All 
 
 I'm trying to configure the rendition by creating new rendition setting file. 
 On my end result I get a large white band (top and below the drawing)

I have try several things but could not get rid of. I'm sure this must be very easy to solve, but could not figure out what is it. 
 
 Look for some inspiration.....

Andrew Edge · Answer

The aspect ratio of your plot area does not precisely match that of your paper size. There can be a number of causes; it depends on how your plot area is determined. 
 The easiest workflow is to use a sheet model in the DGN and specify the corresponding paper size in the .set file (aka rendition profile presentation) used by iCS for PDF. Unlike MicroStation printing, iCS for PDF does not have the ability to automatically set an appropriate paper size from a sheet model. It must be specified explicitly to get anything other than the maximum printer limits (in a default config, 1200 x 1200 inches). Multiple rendition profile presentation options may be necessary if you create renditions with different paper sizes. 
 Likewise, if your .set file indicates that the plot area is to be determined by building a fence from a shape or monument points, then there is no implied paper size and it must be specified explicitly in the .set file if the default square limits are undesired. 
 If you are not using sheet or fence plot area, e.g. the plot area is just a numbered view, then the resulting plot area is imprecise, unpredictable, and could result in the whitespace you depict. Only sheet or fence plot area should be used with non-interactive printing such as iCS for PDF or InterPlot Organizer.