CFPDF add text on an existing pdf

There's an advanced, undocumented method that you can use.  Search for "coldfusion itext pdfstamp".  Here's a post from the Adobe Support Community:
https://community.adobe.com/t5/coldfusion/adding-text-to-pdf-using-itext-instead-of-cfpdf/td-p/2196472?page=1

I've used the iText PDFStamp approach to add text, QR codes and images to a PDF ticket templates and have been doing it since ColdFusion 8.

The best approach, when possible, is to add unique form fields to the PDF and use CFPDFForm to populate them.

Thank you for the reply. Unfortunately these are forms already made. For instance an insurance form woth predefined areas. However I will give acrobat a shot and see if they have some sort or flat input box or area that you can't see.

Thanks again.

I do not know a way to add text to a standard PDF but we do this sort of thing all the time with PDF Forms. If you have Adobe Acrobat, or other tool, you can take a standard PDF and add form fields which you can programatically enter the values using code such as

cfpdfform(action="populate", source="#vTemplate#", destination="#vDoc#", overwrite="true")
{
  cfpdfformparam( name="namefield", value="value for name");
  cfpdfformparam( name="addressfield", value="value for address");
  cfpdfformparam( name="cityfield", value="value for city");
}

The source attribute is your PDF form and the destination is the result PDF with the form populated. 

After populating if you want the result PDF to be protected so you cannot edit the data you need use the following 

	cfpdf(	action = "write",
			source = "source PDF",
			destination = "output PDF",
			flatten = "yes",
			overwrite="yes"
	);

I have had mixed results with "Flatten" and it sometimes leaves the form editable, securing the PDF will stop someone editing

	cfpdf(	action = "protect",
			source = "source PDF",
			destination = "output PDF",
			overwrite="yes",
			NewOwnerPassword="ppppppp",
			permissions="allowprinting"
	);