Some customers want to add text to the image generated by htmlsnapshot.

We will consider this feature in future version of htmlsnapshot.

But meanwhile, it is easy to get an imaging component to add text to an image.

Here is a one I would recommend Active Image Processing.

Load and save multiple image format like jpg, jpeg, png, gif, bmp, wmf, emf, pcx, tga and tiff
Convert between formats like convert jpeg to tiff, convert tiff to jpg etc
Support image resizing
Support image processing method like brightness/contrast/hue/saturation/sharpness/smoothness adjustment
Support drawing text, line and shape
Support combing image together with alpha blending or transparent effect
Support loading and saving multi-page tiff
Support meta tags like Exif or IPTC
Demos in VBScript, ASP, ASP.Net, C#, VB.Net, Php, VB6, Delphi, Coldfusion and BCB are avaiable
.Net ready component