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GroupDocs.Signature for Python via .NET provides a powerful API for working with different electronic signature types such as Text, Image, Digital, Barcode, QR-code, Stamp, Form Field, and Metadata. These e-signatures can be added to documents, updated, deleted, verified, or searched within already signed documents. Our product also provides information about document type and structure - file type, size, pages count, etc. and generates document pages preview based on provided options.

• The Signature class is the main entry point that contains all required methods for manipulating document e-signatures.
• Most methods expect different options objects for signing documents, verifying and searching electronic signatures.
• The Signature class implements proper resource management to ensure all document streams are safely closed when operations are completed.

Install the package using pip:

pip install groupdocs-signature

The following code shows how to include required imports for all code examples:

import groupdocs.signature as signature
from groupdocs.signature.domain import *
from groupdocs.signature.options import *
from groupdocs.signature.domain.extensions import *

The following code shows the most common pattern to define a Signature object and call its methods:

# Sign document with text signature
with signature.Signature("sample.docx") as sign:
    text_sign_options = signature.TextSignOptions("John Smith")
    sign.sign("SampleSigned.docx", text_sign_options)

1. Document Signing: Add various types of signatures to your documents
2. Signature Search: Find existing signatures in documents
3. Signature Verification: Verify the authenticity of signatures
4. Signature Update: Modify existing signatures
5. Signature Deletion: Remove signatures from documents
6. Document Information: Get details about document structure
7. Document Preview: Generate previews of document pages

Please check the detailed examples in the following guides to learn how to:

• Sign documents with different signature types
• Search and verify document signatures
• Update and delete signatures
• Generate document previews
• Get document information

Here are main GroupDocs Signature API concepts:

• Signature is the main class that contains all required methods for manipulating with document e-signatures.
• Most part of methods expects different options to eSign document, verify and search electronic signatures inside document.
• Signature class implements IDisposable interface to correctly release used resources - like safely closing document streams when all operations completed.

The following code shows how to include required namespace for all code examples.

import groupdocs.signature as signature
from groupdocs.signature.domain import *
from groupdocs.signature.options import *
from groupdocs.signature.domain.extensions import *

The following code shows most used code pattern to define Signature object and call its methods.

# Sign document with text signature.
with signature.Signature("sample.docx") as sign:
   text_sign_options = signature.TextSignOptions("John Smith")
   sign.sign("SampleSigned.docx", text_sign_options)

Please check detailed examples of how to eSign documents, search and verify document signatures in the following guides:

• Electronic Signature Types
• Search
• Generate signatures preview
• Verify Document for Signatures
• Generate document pages preview
• Update Signatures in Documents
• Delete signatures from documents
• Signature Use Cases