Overlay a PDF file to another PDF file by PDF Toolbox Command Line application

Hello VeryPDF-Team,

we have a developer Livens for PDFCamp. We want to lay a PDF in the background of an other PDF as background. In the PDF Editor Tools is an option to Watermark with a PDF. How we can do this per CMD or C#? Can we control PDF Editor Tools that way? Thank for help.

Thanks for leaving a message for us.

Do you mean that you need to know how to use PDF Editor Tools to place a PDF in the background of an other PDF as foreground by command line or C#?
Or others, could you please be more specific in your question then we can have a check for you?

Yes, thats it.

PDF Toolbox Command Line has this function,


You can use -overlay, -muloverlay, -underlay and -mulunderlay options in PDF Toolbox Command Line to stamp a PDF file at foreground or background to the pages of another PDF file.

..\bin\pdftoolbox "sample_fillform.pdf" -underlay sample_in2.pdf -outfile "_underlay_out.pdf"

..\bin\pdftoolbox sample_in1.pdf -overlay sample_fillform.pdf -outfile "_overlay_out.pdf"

..\bin\pdftoolbox sample_in2.pdf -muloverlay sample_fillform.pdf -outfile "_muloverlay_out.pdf"

..\bin\pdftoolbox "sample_fillform.pdf" -mulunderlay sample_in2.pdf -outfile "_mulunderlay_out.pdf"


Our VeryPDF Cloud API Platform has this function too, please look at following web pages for more information,



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