PdfDigitalSignatureHashAlgorithm enumeration

PdfDigitalSignatureHashAlgorithm enumeration

Specifies a digital hash algorithm used by a digital signature.


Name Description
SHA256 SHA-256 hash algorithm.
SHA384 SHA-384 hash algorithm.
SHA512 SHA-512 hash algorithm.
RIPE_MD160 RIPEMD-160 hash algorithm.


Shows how to sign a generated PDF document.

doc = aw.Document()
builder = aw.DocumentBuilder(doc)
builder.writeln("Contents of signed PDF.")

certificate_holder = aw.digitalsignatures.CertificateHolder.create(MY_DIR + "morzal.pfx", "aw")

# Create a "PdfSaveOptions" object that we can pass to the document's "save" method
# to modify how that method converts the document to .PDF.
options = aw.saving.PdfSaveOptions()

# Configure the "digital_signature_details" object of the "SaveOptions" object to
# digitally sign the document as we render it with the "save" method.
signing_time = datetime.now()
import aspose.words.saving as aws
options.digital_signature_details = aw.saving.PdfDigitalSignatureDetails(certificate_holder, "Test Signing", "My Office", signing_time)
options.digital_signature_details.hash_algorithm = aw.saving.PdfDigitalSignatureHashAlgorithm.RIPE_MD160

self.assertEqual("Test Signing", options.digital_signature_details.reason)
self.assertEqual("My Office", options.digital_signature_details.location)
self.assertEqual(signing_time.astimezone(timezone.utc), options.digital_signature_details.signature_date)

doc.save(ARTIFACTS_DIR + "PdfSaveOptions.pdf_digital_signature.pdf", options)

See Also