Update Image Signatures in Document Leave feedback

GroupDocs.Signature for Python via .NET provides functionality to manipulate image signatures’ location, size, and other properties. Please note that the update method modifies the same document that was passed to the constructor of the Signature class.

Here are the steps to update an Image signature in a document with GroupDocs.Signature:

• Create a new instance of the Signature class and pass the source document path as a constructor parameter
• Instantiate the ImageSearchOptions object with desired properties
• Call the search method to obtain a list of image signatures
• Select from the list the ImageSignature object(s) that should be updated
• Call the Signature object’s update method and pass one or several signatures to it

This example shows how to update an Image signature that was found using the search method:

import groupdocs.signature as signature
from groupdocs.signature.options import ImageSearchOptions

# Initialize signature
with signature.Signature("sample_signed.pdf") as sign:
    # Create search options
    options = ImageSearchOptions()
    
    # Search for image signatures in document
    signatures = sign.search(options)
    
    if len(signatures) > 0:
        # Get first image signature
        image_signature = signatures[0]
        
        # Change image properties
        image_signature.top = 200
        image_signature.left = 200
        image_signature.width = 300
        image_signature.height = 150
        
        # Update the signature
        result = sign.update(image_signature)
        
        if result.updated_count > 0:
            print(f"Signature with top position '{image_signature.top}' was updated in the document")
        else:
            print(f"Signature was not updated in the document! "
                  f"Signature with top position '{image_signature.top}' was not found!")

You may easily run the code above and see the feature in action in our GitHub examples:

• GroupDocs.Signature for Python via .NET examples

Along with the full-featured Python library, we provide simple but powerful free online apps.

To generate image signatures and/or sign your files with them for free, you can use the Generate Image online app.

To sign PDF, Word, Excel, PowerPoint, and other documents you can use the other online apps from the GroupDocs.Signature App Product Family.