Stirling PDFInstall

Summary

Sign a PDF file with a digital certificate provided in various formats, optionally showing a visible signature on a specified page with customization options.

Inputs

• fileInputBinaryProperty — Binary property name containing the PDF file data to sign (e.g., 'data').
• fileId — ID of a server-side file to sign (alternative to file input for async jobs).
• certType (required) — Type of the digital certificate used to sign the PDF (e.g., PEM, PKCS12, PFX, JKS, SERVER).
• privateKeyFileBinaryProperty — Binary property name containing private key file data (used when supplying certificate and key separately).
• certFileBinaryProperty — Binary property name containing certificate file data (used when supplying certificate and key separately).
• p12FileBinaryProperty — Binary property name for a PKCS12/PFX certificate file data.
• jksFileBinaryProperty — Binary property name for a JKS keystore file data.
• password — Password for the keystore or private key if required.
• showSignature (required) — Boolean flag indicating whether to show the signature visibly inside the PDF.
• reason — Reason text for signing the PDF, defaulting to 'Signed by SPDF'.
• location — Location text indicating where the PDF is signed, defaulting to 'SPDF'.
• name — Name of the signer to display on the signature, defaulting to 'SPDF'.
• pageNumber — Page number to display the visible signature; required if showSignature is true.
• showLogo (required) — Boolean flag indicating whether to show a logo alongside the visible signature.

Output shape

a single signed PDF binary file output

If showSignature is true, the signature will be visually embedded on the specified page number. Input can be provided either as binary data or a server-side fileId. Certificate-related inputs vary by certType. Optional parameters customize the visible signature appearance and metadata.

Links

• n8n community nodes installation guide