Hi everyone, I would like to overlay 2 pdf files but with particular modifications. I know how to overlay 2 pdf but sometimes I need to remove some elements of one of them during overlay operation. For example, imagine an invoice composed with 2 files: -one is the background page (containing logo or others fixed graphical elements) -one is the text page (containing amounts, dates, invoice number, ...) As you probably guessed, to obtain final invoice I overlay this 2 pages (and it works perfectly in 99.99% of cases) That brings me to my problem. Sometimes the "text page" is somewhat "dirty". I mean there are some text areas with a white background instead of a transparent background. So when I do the overlay, I see on final invoice, white areas which overwrite background page (it covers some graphical elements and it should not). So my question is how to say during overlay operation: "don't keep elements which are white backgrounds, or replace them by transparent backgrounds". I don't know how parse each element of the pdf and say if this element is a white background don't keep it. My question is not "how to keep text only". I want remove only white backgrounds (or replace them by transparent backgrounds) and keep all others elements (all images, all texts, all backgrounds which are not white, ...) I use pdfbox 1.8.11
I thank you in advance for your help.
