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Signature for Python via .NET

Sign Documents with Python API

Digitally sign documents and images across platforms with our flexible APIs, built for developers and end-users alike.

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import groupdocs.signature as sg

def run():

    # Select PDF document
    with sg.Signature('sample.pdf') as signature:

        # Provide text
        options = sg.TextSignOptions("John Smith")

        # Set color
        options.ForeColor = sg.Color.Red

        # Sign document and save to file
        signature.Sign('signed.pdf', options)

pip install groupdocs-signature-net

GroupDocs.Signature Overview

A powerful document signing library designed for use in Python applications.

Comprehensive Digital Signatures for Business Documents in Python

GroupDocs.Signature for Python via .NET provides a wide range of digital signature options, including text, barcodes, images, digital certificates, and metadata for PDFs, Office documents, and images. The solution is optimized for efficient document processing.

Advanced Document Processing

GroupDocs.Signature allows you to manage signed documents by searching and validating signatures based on multiple criteria. You can also extract detailed document data or generate page previews.

Flexible Output Formats

Our API gives you control over the final format of signed documents, enabling precise positioning of signatures, customization of their appearance, and saving in a variety of formats. Optionally, you can secure documents with passwords.

Platform independence

GroupDocs.Signature for Python via .NET works seamlessly across various operating systems.

Supported file formats

GroupDocs.Signature for Python via .NET supports operations for a wide range of popular file formats. Learn more here.

Microsoft Office formats

Word: DOCX, DOC, DOCM, DOT, DOTX, DOTM, RTF
Excel: XLSX, XLS, XLSM, XLSB, XLTM, XLT, XLTM, XLTX, XLAM, SXC, SpreadsheetML
PowerPoint: PPT, PPTX, PPS, PPSX, PPSM, POT, POTM, POTX, PPTM

Images & Other Formats

Portable: PDF
Images: JPG, BMP, PNG, TIFF, GIF, DICOM, WEBP
Other office formats: ODT, OTT, OTS, ODS, ODP, OTP, ODG

Other formats

Web: HTML, MHTML
Archives: ZIP, TAR, 7Z
Certificates: PFX

Key Features of GroupDocs.Signature

Sign PDFs, Office documents, and images with ease using digital signatures.

Business Signatures

Use a variety of signature types to sign documents and place them on any page in the desired location.

Customizable Signature Appearance

Easily customize the look of your signatures, including color, font, borders, rotation, and more, to match your needs.

Password Protection

Add an extra layer of security to signed documents by protecting them with passwords.

Prevent Unauthorized Changes

Ensure that important business documents are protected from unauthorized modifications by using digital certificates.

Flexible Output Formats

Generate signed documents in multiple formats. Convert Word documents to PDFs seamlessly.

Document Previews

Save individual document pages as images for later use.

Signature Search

Easily find and retrieve information about any previously added signatures in your documents.

Document Validation

Verify the authenticity of signatures in any document to ensure integrity.

Manage Signatures

Easily delete, move, or edit signatures on any page of the document.

Code samples

Here are some code examples that demonstrate typical GroupDocs.Signature for Python via .NET operations.

Add QR Codes to a PDF

Integrating QR codes into specific pages of a PDF can help streamline your business processes. This example shows how to add a QR code using GroupDocs.Signature for Python via .NET in Python.

How to put QR code to PDF.

import groupdocs.signature as sg

def run():

    # Load the document to sign
    with sg.Signature('file_to_sign.pdf') as signature:

        # Create QR code options with predefined text
        options = sg.QrCodeSignOptions('The document is approved by John Smith')

        # Configure QR code encoding type and position on the page
        options.EncodeType = sg.QrCodeTypes.QR
        options.Left = 100
        options.Top = 100
    
        # Sign the document and save it as the result file
        signature.Sign('file_with_QR.pdf', options)

Protect a DOCX with a Digital Signature

Protect your documents with signatures based on digital certificates. Digital signatures safeguard your business documents from unauthorized changes.

Here is how to ensure document integrity.

import groupdocs.signature as sg

def run():

    # Load the document to be digitally signed
    with sg.Signature('file_to_sign.docx') as signature:

        # Specify digital signing options and provide the path to the certificate file
        options = sg.DigitalSignOptions('certificate.pfx')

        # Set the certificate password
        options.Password = '1234567890'

        # Sign the document and save it to the desired path
        signature.Sign('digitally_signed.docx', options)

Sign Documents with Python API

Signing PDFs with Python

GroupDocs.Signature Overview

Comprehensive Digital Signatures for Business Documents in Python

Advanced Document Processing

Flexible Output Formats

Platform independence

Supported file formats

Microsoft Office formats

Images & Other Formats

Other formats

Key Features of GroupDocs.Signature

Code samples

Add QR Codes to a PDF

How to put QR code to PDF.

Protect a DOCX with a Digital Signature

Here is how to ensure document integrity.

Ready to get started?

Sign Documents with Python API

Signing PDFs with Python

GroupDocs.Signature Overview

Comprehensive Digital Signatures for Business Documents in Python

Advanced Document Processing

Flexible Output Formats

Platform independence

Supported file formats

Microsoft Office formats

Images & Other Formats

Other formats

Key Features of GroupDocs.Signature

Code samples

Add QR Codes to a PDF

How to put QR code to PDF.

Protect a DOCX with a Digital Signature

Here is how to ensure document integrity.

Ready to get started?

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