GroupDocs.Signature empowers .NET developers to revise the content of text signatures previously embedded in PDF files. Augment .NET applications with advanced capabilities.
// Instantiate a Signature object with the document file path
using (Signature signature = new Signature("input.pdf"))
{
// Execute a search for text signatures within the document
TextSearchOptions options = new TextSearchOptions();
List<TextSignature> signatures = signature.Search<TextSignature>(options);
if (signatures.Count > 0)
{
// Update the text content of the first located signature
TextSignature textSignature = signatures[0];
textSignature.Text = "New Text";
bool result = signature.Update(textSignature);
// Validate the result of the text modification
if (result)
{
Console.WriteLine($"Signature was updated successfully");
}
}
}
With GroupDocs.Signature for .NET, you can efficiently add, update, search, verify, or delete signatures across all major document formats, simplifying your document workflow.
Our solution excels in applying diverse signatures, including text, images, barcodes, and stamps, to any part of a document. You can also embed and modify hidden metadata like EXIF in images, while safeguarding documents against unauthorized alterations using digital certificates.
Leverage powerful tools to verify the accuracy and validity of signatures. Access a complete list of embedded signatures within a document, streamlining the verification process.
Modify previously added signatures with ease. Adjust the content, style, placement, and other signature-specific attributes to meet evolving document requirements.
Full control over signature management is provided, allowing you to remove any type of signature from a document, ensuring flexibility in content handling.
// Load a document containing barcode signatures
using (Signature signature = new Signature("input.pdf"))
{
// Search for all existing barcode signatures
BarcodeSearchOptions options = new BarcodeSearchOptions();
List<BarcodeSignature> signatures = signature.Search<BarcodeSignature>(options);
if (signatures.Count > 0)
{
// Modify the position of the first detected barcode and save the document
BarcodeSignature barcodeSignature = signatures[0];
barcodeSignature.Left = 100;
barcodeSignature.Top = 100;
bool result = signature.Update(barcodeSignature);
// Verify the success of the barcode modification
if (result)
{
Console.WriteLine($"Barcode was updated successfully.");
}
}
}
Download GroupDocs.Signature for free or get a trial license for full access!
Explore documentation, code samples, and community support to enhance your experience.
Discover the full range of signature formats and operations supported by our platform
Documents signed with our .NET API can be easily modified. Extract and update signature details from supported formats, ensuring complete control over document integrity.
