The printing speed is become slow when I use PDFPrint Command Line with transparent/opacity watermarks

I'm currently working on a PowerShell script to print original pdfs with a dynamic watermark on them. We will probably buy 3 times your product, to put it on three different computers (several places) (see quotation in attachment).

I use the watermarkfile option to create the dynamic watermarks. (see sample attachment Giapetti.ini)

The command line I use in PowerShell is Start-Process -FilePath "C:\Users\admin\Documents\Sources\pdfprint\pdfprint_cmd\pdfprint.exe" -ArgumentList -winfont,-winfont2,-scalex,100,-scaley,100,-pdforient,0,-orient,1,-color,1,-printermargins,-copies,$nombre,-setcopyto,-jobdocname,`"$docname`",-watermarkfile,`"c:\Users\admin\Documents\$settings`",-printer,$Printer,`"c:\Users\admin\Documents\$file`" -wait

It works mostly fine, but sometimes files print slowly at the RIP level.

Jobs are sent rapidly to the printer (EFI RIP in front of a fast RICOH 8120 printer - Driver (EB-32 v2.0 PS)) and the RIP takes a lot of time to process pages with the watermark.
Pages without watermark or original file print like a breeze.
I get different results (time to print) depending on the driver I use , but each has advantages.
Print settings (cover, staples, ...) are tuned via virtual printers on EFI RIP so I must test further to get a working product.

Some questions :
Do you have specific tips related to watermarks for faster printout?
Is there a guideline on the driver to use preferably and additional settings to look at?

I would like to try the raster options for instance (will I get a faster result?), but I've nearly reached the print limit. Is it possible to extend the limit of prints?

How comes that files already stamped with another program loose transparency information for instance? Is it related to the fact that you add another stamp on the evaluation version?

Many thanks for helping me.

Best regards,
Customer
---------------------------------------------------------
PDFPrint Command Line download page,

http://www.verypdf.com/app/pdf-print-cmd/try-and-buy.html#buy
http://www.verypdf.com/pdfprint/pdfprint_cmd.zip
---------------------------------------------------------
This is the contents of Giapetti.ini file,

[watermark1]
type=0
text=Giapetti Giapetti Giapetti
fontname=Times New Roman
x=1000
y=1500
opacity=30
angle=53
width=0
height=186
firstpage=1
lastpage=max
color=000000

[watermark2]
type=0
text=Giapetti Giapetti Giapetti
fontname=Times New Roman
x=4500
y=6500
opacity=30
angle=53
width=0
height=186
firstpage=1
lastpage=max
color=000000

[watermark3]
type=0
text=Giapetti Giapetti Giapetti
fontname=Times New Roman
x=-2500
y=-3500
opacity=30
angle=53
width=0
height=186
firstpage=1
lastpage=max
color=000000

[watermark4]
type=0
text=Giapetti Giapetti Giapetti
fontname=Times New Roman
x=-6000
y=-8500
opacity=30
angle=53
width=0
height=186
firstpage=1
lastpage=max
color=000000
---------------------------------------------------------
>>Do you have specific tips related to watermarks for faster printout?

I have checked your Giapetti.ini file, this .ini file contains some text watermarks, these text watermarks are contain "opacity=30" properties, I guess this option will reduce the printing speed, if possible, you may use "opacity=100" to try again.

>>Is there a guideline on the driver to use preferably and additional settings to look at?

We haven't a guideline on the driver side yet.

>>I would like to try the raster options for instance (will I get a faster result?), but I've nearly reached the print limit. Is it possible to extend the limit of prints?

You can simple copy the entire folder of PDFPrint Command Line application to another system, then you can evaluate it on the new system continue.

>>How comes that files already stamped with another program loose transparency information for instance? Is it related to the fact that you add another stamp on the evaluation version?

Yes, the transparent demo watermark will slow the printing speed too, because the printer will spend additional time to handle the transparent watermarks.

We suggest you may run following command line to try again, will this command line to print your PDF files faster than before?

pdfprint.exe -raster2 -rasterbwtext -rasterbitcount 1 -xres 150 -yres 150 C:\input.pdf

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