Trimming whitespace

[troyd1]

I have 6.6.9-7. q16 dynamic - window 2003 server

I am using the caption command on a charactor and then centering it on another image. It moves vertically depending on the font and the character. I am guessing that it is because the font is adding whitespace either above or below the actual character as for line height. How can I trim away any whitespace from the top or bottom of the image created with the caption command?

[glennrp]

-trim

Note, that will also trim whitespace from the left and right.

[fmw42]

perhaps should be -trim +repage to remove the virtual canvas