Sign Documents via Python

readme.md

Add digital signature to Word, PDF, PowerPoint Files and Images via Python

https://products.aspose.com/total/python-net/signature/

add-digital-signature-to-word-documents.py

doc = aw.Document()
builder = aw.DocumentBuilder(doc)

signatureLine = builder.insert_signature_line(aw.SignatureLineOptions()).signature_line
    
doc.save(docs_base.artifacts_dir + "SignDocuments.signature_line.docx")

signOptions = aw.digitalsignatures.SignOptions()
    
signOptions.signature_line_id = signatureLine.id
with open(docs_base.images_dir + "Enhanced Windows MetaFile.emf", "rb") as image_file:
    signOptions.signature_line_image = image_file.read()
    

certHolder = aw.digitalsignatures.CertificateHolder.create(docs_base.my_dir + "morzal.pfx", "aw")
    
aw.digitalsignatures.DigitalSignatureUtil.sign(docs_base.artifacts_dir + "SignDocuments.signature_line.docx",
    docs_base.artifacts_dir + "SignDocuments.new_signature_line.docx", certHolder, signOptions)

add-electronic-signature-to-pdf.py

import aspose.pdf as pdf
import aspose.pydrawing as drawing

# Set the source directory path
filePath = "C://Words//"

# Load the license in your application to crop the PDF
pdfCropLicense = pdf.License()
pdfCropLicense.set_license(filePath + "Conholdate.Total.Product.Family.lic")

#Load the PDF file to crop
pdfDoc = pdf.Document(filePath + "GeneratedPdf.pdf")

#Instantiate the PdfFileSignature for the loaded PDF document
signature = pdf.facades.PdfFileSignature(pdfDoc)

#Load the certificate file along with the password
pkcs = pdf.forms.PKCS7(filePath + "sample.pfx", "123456789")

#Assign the access permissions
docMdpSignature = pdf.forms.DocMDPSignature(pkcs, pdf.forms.DocMDPAccessPermissions.FILLING_IN_FORMS)

#Set the rectangle for the signature placement
rect = drawing.Rectangle(150, 650, 450, 150)

#Set signature appearance
signature.signature_appearance = "sample.jpg"

#Sign the PDF file with the certify method
signature.certify(1, "Signature Insert  Reason", "Contact", "Location", True, rect, docMdpSignature)

#Save digitally signed PDF file 
signature.save("Digitally Signed PDF.pdf")

add-esignature-to-image.py

import aspose.pycore as aspycore
from aspose.imaging import *
from aspose.imaging.brushes import *
from aspose.imaging.fileformats.jpeg import *
from aspose.imaging.imageoptions import *
import os

if 'TEMPLATE_DIR' in os.environ:
	templates_folder = os.environ['TEMPLATE_DIR']
else:
	templates_folder = r"C:\Users\USER\Downloads\templates"

delete_output = 'SAVE_OUTPUT' not in os.environ
data_dir = templates_folder
with Image.load(os.path.join(data_dir, "template.tiff")) as canvas:
	with Image.load(os.path.join(data_dir, "template.bmp")) as signature:
		graphics = Graphics(canvas)
		point = Point(canvas.width - signature.width, canvas.height - signature.height)
		print(point)
		graphics.draw_image(signature, point)
		canvas.save(os.path.join(data_dir, "result.png"), PngOptions())

if delete_output:
	os.remove(os.path.join(data_dir, "result.png"))

add-esignature-to-powerpoint-files.py

import aspose.slides as slides

# Load presentation
with slides.Presentation("presentation.pptx") as pres:
    # Create DigitalSignature object with PFX file and PFX password 
    signature = slides.DigitalSignature("certificate.pfx", "password")

    # Comment new digital signature
    signature.comments = "Signing with Aspose.Slides"

    # Add digital signature to presentation
    pres.digital_signatures.add(signature)

    # Save presentation
    pres.save("SignedPPT.pptx", slides.export.SaveFormat.PPTX)