Rectangles need to be normalized for use:
Rectangles are used to describe locations on a page and bounding
boxes for a variety of objects, such as fonts. A rectangle is
written as an array of four numbers giving the coordinates of a pair
of diagonally opposite corners. Typically, the array takes the form
[ llx lly urx ury ]
specifying the lower-left x, lower-left y, upper-right x, and
upper-right ycoordinates of the rectangle, in that order. The other
two corners of the rectangle are then assumed to have coordinates
(llx, ury) and (urx, lly).
/Note: Although rectangles are conventionally specified by their
lower-left and upper-right corners, it is acceptable to specify any
two diagonally opposite corners. Applications that process PDF
should be prepared to normalize such rectangles in situations where
specific corners are required./
So the MediaBox should be (rewritten internally) as (0, -6600, 5100, 0)
I've seen this fairly often in a previous life.
Marc
On 8/4/2025 8:56 PM, Tilman Hausherr wrote:
Hi,
I'm not yet sure if this is a bug or expected behavior, but I noticed
this:
The mediabox (and the cropbox) have a negative Y bound, this is weird.
It could be that the software sets the overlay at (0,0) so it will be
invisible.
Tilman
Am 05.08.2025 um 00:04 schrieb Brent:
I have a sample pdf and overlay attached. When I run the command:
java.exe -jar pdfbox-app-3.0.5.jar overlay -i originalPDF.pdf
-default overlay.pdf -position FOREGROUND -o output.pdf
The resulting PDF does not have an overlay. The document size
increases, so I believe the overlay operation is performed, but it
does not render. Note, the same result occurs when running the API.
I have used overlay successfully on other documents, but I have a
document set that it does not work on and this is a sample of the
scenario.
Is this something that should be reported as a bug?
Thank you,
Brent
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