SignDoc SDK includes the following tools:

CleanPKCS12: remove private key files that some versions of Windows leave behind in the file system when extracting keys from PKCS #12 files and blobs. See CleanPKCS12.txt for details.
copy-framework: copy a framework following symbolic links (macOS and iOS)
SignDocKeyTool: create a key pair for encryption of biometric data, see Encryption of biometric data for details.
signdocsdk: call SignDoc SDK from the command line.
sppdfedit: a low-level editor PDF files, see the sppdfedit documentation for details.
sppdftool: a command-line tool for automatic tests involving PDF files, see the sppdftool documentation for details.