Am 10.07.2015 um 22:13 schrieb Swapnil Raverkar:
Hi,
We have few transparent images which we are overlaying on PDF document
pages. However they can be removed using PDF editing tools, since they form
a different layer over existing PDF document.
Is there any way in PDFBox through which the transparent images will be
integrated with the original page? i.e. there will be a single layer.
In theory, you could get the page content stream, modify it, and save
the image. But inserting this is very tricky, you would have to take the
CTM (current transformation matrix) into consideration (and possibly
other things like the graphics settings), so that the image appears at
the correct place and correct size. However this is still editable, of
course, even if it isn't a layer. (Removing it is much simpler than
adding it :-))
Tilman
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