Hello, I'm a newbie to PDFBox. It appears to be a very useful tool for what we're trying to accomplish.
FWIW, in the past we have been building our own raw PDF files from scratch for simple printed output from Java code. It was tedious, but with a minimal API on top, it worked. Thus I have a bit of knowledge about the structure of a PDF, but not much more. I have noticed that when images, text and graphics are mixed in a single PDPageContentStream in no particular order, it appears that the elements are displayed and printed in layers. From my initial tests, it appears that graphics (lines and filled polygons) are at the lowest layer, text is above the graphics, and images are on top of graphics and text. Is that correct? Is that a feature or an accident? Is that a feature of the PDF spec or PDFBox? Is that behavior documented anywhere? I need to put a watermark on each page of a report. So for each page of the report I create a PDPageContentStream, draw the watermark image on that content stream, close it, and then create a second PDPageContentStream in APPEND mode for the page that contains the text, graphics and images of the page. All seems to work well. Is that the correct approach, or is there another better method? Also, is there a place where I can search for answers to questions like this? I'm sure this particular question has been answered before. I couldn't find anything on StackOverflow and I have no idea how to search the archives of this email list. TIA. Don Wills Portable Software Company --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
