
| PdfDigitalSignature(Byte, String, Int32) | Creates a digital signature object from PFX file data to be applied in PDF document over the last rendered object | 
| PdfDigitalSignature(String, String, Int32) | Creates a digital signature object from a PFX file to be applied in PDF document over the last rendered object | 
| PdfDigitalSignature(RectangleFloat, Byte, String, Int32) | Creates a digital signature object from a PFX file data to be applied at a given location in PDF page | 
| PdfDigitalSignature(RectangleFloat, String, String, Int32) | Creates a digital signature object from a PFX file to be applied at a given location in PDF page |