Using Signature Appearances
GroupDocs.Signature contains several signature appearance classes that implements document oriented special signature representation.
Base signature optionsย SignOptionsย contains propertyย SignOptions.Appearanceย that expects instance of the following classes
- PdfTextAnnotationAppearanceย class implementsย for Pdf documents signature as annotation area. Note thatย TextSignOptions.SignatureImplementationย property must be set toย TextSignatureImplementation.Annotation
- PdfTextStickerAppearanceย class implementsย for Pdf documents signature as small sticker. Note thatย TextSignOptions.SignatureImplementationย property must be set toย TextSignatureImplementation.Sticker
- ImageAppearanceย class extends any image based with different image adjustments (like gray scale, contrast, brightness,ย corrections, border etc)
- DigitalSignatureAppearance class extends for Word Processing and Spreadsheet documents digital signature appearances as page header information line
- PdfDigitalSignatureAppearance class extends for PDF documents digital signature appearances to adjust labels and color.
Following examples demonstrate using these classes