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BoundingBox ghostscript values

I just ask myself what are these bbox values ​​printed:

gs -dSAFER -dNOPAUSE -dBATCH -sDEVICE=bbox myfile.pdf

%%BoundingBox: 46 911 1668 4537
%%HiResBoundingBox: 46.080002 911.520035 1667.520064 4536.000173

top-left-X, top-left-Y, ....?

And what is the measurement of these values ​​(1/72 ")?

thanks for the help

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1 answer

These values ​​are shown in the "points" of PostScript:

72 points == 1 inch

so yes, the measurement value is 1/72 '' ...

Four values ​​should be read as two pairs of coordinates describing the lower left and upper right corner points of the rectangle enclosing the bounding rectangle.

The PostScript coordinate system has a start in the lower left corner.

The part is 46 911intended for the bottom left corner point: the distance is 46 points from the left edge of the right and 911 points from the bottom edge.

1668 4537 : 1668 4537 .

( ​​ ... , .)

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