[GRLUG] Watermarking "Print" Queue

[Steve Romanow]

Adam,

Why not make a cups queue that watermarks anything sent to it?  The
you can use the distro's I'm

Steve

On 5/15/10, Steve Romanow <slestak989 at gmail.com> wrote:
> Check perzl.org
>
> On 5/14/10, Adam Tauno Williams <awilliam at whitemice.org> wrote:
>> On Fri, 2010-05-14 at 10:50 -0400, Roger Roelofs wrote:
>>> Adam,
>>>
>>> On 5/14/10 10:29 AM, Adam Tauno Williams wrote:
>>> > I've had this stupid task on my to-do list since Febuary of '08;  and
>>> > while I take swings at it occasionally I never arrive at something
>>> > that
>>> > works.
>>> > We have a COBOL application that spools out jobs in PCL [a crude PCL
>>> > at
>>> > that] on an AIX host.  I have a simple "queue" on that host which
>>> > instead
>>> > turns the print job into a PDF and mails it to the user (which is very
>>> > popular).
>>> > However, users want to do the same thing but have the PDF watermarked
>>> > with
>>> > "DRAFT".  I've tried various cocktails with enscript, pdftk, etc...
>>> > but
>>> > never found a working solution.
>>> First I'd suggest converting to postscript as an intermediate format.
>>> Postscript is easier to parse and manipulate than pdf.  You can convert
>>> to pdf as the last step.
>>> How would the users indicate they want the DRAFT watermark?
>>
>> It is a specific print queue [queues are defined in the COBOL
>> application (AcuCOBOL) separately from the underlying system].
>>
>> I've just discovered that ImageMagick's composite command works
>> extremely well for water marking:
>>
>> composite -dissolve 80% -compose bumpmap \
>>   -gravity center ./Documents/Organizatis/MI/Draft.eps invoice.pdf 3.pdf
>>
>> creating a 3.pdf from invoice.pdf with the watermark from Draft.pdf.
>>
>> Now there is just the joy of finding an ImageMagick build that works on
>> AIX 5.3.0.  Oh, joy.
>>
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