Support for merging a page in the background (watermark) #307
Description
I propose adding an optional argument background=False to the various merge...Page methods.
All these methods finally go into _mergePage. There, the following little change should to the trick:
newContentArray = ArrayObject()
originalContent = self.getContents()
if originalContent is not None:
newContentArray.append(PageObject._pushPopGS(
originalContent, self.pdf))
page2Content = page2.getContents()
if page2Content is not None:
if page2transformation is not None:
page2Content = page2transformation(page2Content)
page2Content = PageObject._contentStreamRename(
page2Content, rename, self.pdf)
page2Content = PageObject._pushPopGS(page2Content, self.pdf)
if background:
newContentArray.insert(0, page2Content)
else:
newContentArray.append(page2Content)