Transparency support is PostScript is very limited (this is not a FOP limitation but a PostScript limitation). If I understood well you are generating PostScript before sending to the printer. I think that is the issue.
On Thu, Sep 6, 2012 at 11:07 AM, Martin Edge <martin.e...@intellimail.com.au > wrote: > Thanks Mehdi - it does help :-) > > > > --------------- > Martin Edge > --------------- > > On 06/09/2012, at 8:05 PM, mehdi houshmand <med1...@gmail.com> wrote: > > Hi Martin, > > I think we had a look at this issue at some point last year, as far as I > remember, transparencies aren't very well supported with the pdf-image > plugin. I think the best way to implement them would be to use transparency > groups to that you can better control layered transparencies. However, I > haven't looked at how easy/hard any of this would be to implement. > > We investigated this a long time ago, so I could be wrong, but from your > findings it looks like I'm not far off the mark. > > Sorry if that's not really of any help to you, > > Mehdi > > On 6 September 2012 10:46, Martin Edge <martin.e...@intellimail.com.au>wrote: > >> Hi,**** >> >> ** ** >> >> Wondering if I could get some advice on how to address the issue whereby >> if a PNG is used within a PDF with a transparent background, and that image >> is then put within a PDF, where then we rely on pdf-image to convert >> (because ultimately I want to have the output use the less printer-resource >> hungry postscript) – that the transparency is converted to a black colour. >> **** >> >> ** ** >> >> Obviously the easiest answer is to just not use transparency, but I am >> dealing with PDFs supplied from external clients, so it would be better if >> I have a way of managing this.**** >> >> ** ** >> >> Ultimately what I am using this for is to generate flyer sheets for >> printing, where I am taking a base PDF as initial artwork, and then adding >> personalised address information for each recipient. **** >> >> ** ** >> >> Thanks in advance,**** >> >> Martin**** >> >> ** ** >> >> <image001.jpg>**** >> >> *Martin Edge* >> >> >> >> **** >> >> ** ** >> >> ** ** >> > >
