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C
cngtwo
Participant
October 13, 2009
Question

Watermark PS programming

  • October 13, 2009
  • 2 replies
  • 1881 views

My custom application generates Postscript files that are then distilled to create a PDF file as final output.

I know how to program a watermark in Postscript using setpagedevice.

However, I cannot find a way to dynamically make the watermark appear only at printing time. I'd like to emulate (programmatically in PS, or pdfmark)  the Acrobat Professional capability whereas you can set a watermark to appear only at printing time.

Thanks for your suggestions!

This topic has been closed for replies.

2 replies

H
Helge Blischke
Participating Frequently
October 19, 2009

There was an Acrobat feature "Write Through PostScript" annotation which could be used

to accomplish just that (provided the destination printer speaks PostScript level 2 at least).

But I think this feature has been deprecated as of Acrobat 5 (PDF 1.4), and I'm not sure

if more recent Acrobat versions even support this.

Helge

A
abeddie
Participating Frequently
October 19, 2009

You could for example print the watermark if not a reconized non-printer like distiller or gs

or vice versa print if a known printer.

WaterMark

{

  currentsystemparams /PrinterName known
  {currentsystemparams /PrinterName get } { (Unknown ) } ifelse

  % string compare etc. to do or skip watermark

} def

<<

  /EndPage { % WaterMark here }
>> setpagedevice

Ed

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