Hi Samuel,
Thank you for your interest in Syncfusion products.
You can add content to source PDF document using the following
code snippet:
' Write description.
loadedPage.Graphics.DrawString(description,
font, blackBrush, New RectangleF(location,
size))
The location and size of the text should be known in prior to
get the expected result. I had placed a simple sample demonstrating this in the
following link:
TextOverlaySample.zip
The following assemblies should be added as reference for
running the application:
Syncfusion.Compression.Base
Syncfusion.Core
Syncfusion.Pdf.Base
Could you please check this sample and let me know if you need
more details?
Regards
Geetha