• Introducing GroupDocs.Signature for .NET
    • Getting Started
      • Features Overview
      • System Requirements
      • Supported Document Formats
      • Installation
      • Evaluation Limitations and Licensing of GroupDocs.Signature
      • How to Run Examples
    • Developer Guide
      • Basic usage
        • Get supported file formats
        • Get document information
        • Electronic signature types
          • eSign document with Barcode signature
          • eSign document with Digital signature
          • eSign document with Form Field signature
          • eSign document with Image signature
          • eSign document with Metadata signature
            • eSign Image with Metadata signature
            • eSign PDF with Metadata signature
            • eSign Presentation with Metadata signature
            • eSign Spreadsheet with Metadata signature
            • eSign Word Processing document with Metadata signature
          • eSign document with QR-code signature
          • eSign document with Text signature
          • eSign document with Stamp signature
          • eSign document with multiple signatures
        • Search for electronic signatures in document
          • Search for Barcode e-signatures
          • Search for Digital e-signatures
          • Search for QR-Code e-signatures
          • Search for Metadata e-signatures
          • Search for Form Field e-signatures
          • Search for Text e-signatures
          • Search for Image e-signatures
          • Search for multiple e-signature types
        • Verify document for signatures
          • Verify Barcode signatures in the document
          • Verify Digital signatures in the document
          • Verify QR-code signatures in the document
          • Verify Text signatures in the document
          • Verify for multiple signatures
        • Generate document pages preview
        • Generate signature preview
        • Update signatures in documents
          • Update Barcode signatures in document
          • Update Image signatures in document
          • Update QR-code signatures in document
          • Update Text signatures in document
        • Delete signatures from documents
          • Delete Barcode signatures from documents
          • Delete Image signatures from documents
          • Delete QR-code signatures from documents
          • Delete Text signatures from documents
          • Delete Digital signatures from documents
          • Delete Signatures of the certain type
      • Advanced usage
        • Common
          • Obtain document form fields and signatures information
          • Obtain document history information
          • Processes cancellation
          • Subscribing for search process events
          • Subscribing for signing process events
          • Subscribing for verification process events
        • Loading
          • Loading documents from different sources
            • Load document from Amazon S3 Storage
            • Load document from Azure Blob Storage
            • Load document from FTP
            • Load document from local disk
            • Load document from Stream
            • Load document from URL
          • Load password-protected document
        • Saving
          • Save signed document with password
          • Save signed images with various output types
          • Saving signed documents with different formats
            • Save signed Image with different output file type
            • Save signed Pdf with different output file type
            • Save signed Presentation with different output file type
            • Save signed Spreadsheet with different output file type
            • Save signed Word Processing with different output file type
        • Searching
          • Advanced search for Barcode signatures
          • Advanced search for Digital signatures
          • Advanced search for QR-code signatures
          • Advanced search for Text signatures
          • Advanced search for Image signatures
          • Search for built-in Metadata signatures
          • Advanced search for Form Field signatures
          • Search for embedded and encrypted objects in Metadata signatures
            • Search for embedded object with custom encryption of Metadata signatures
            • Search for embedded object with custom serialization of Metadata signatures
            • Search for encrypted objects Metadata signatures
            • Search for encrypted text in Metadata signatures
          • Search for embedded and encrypted objects in QR-Code signatures
            • Search for embedded object with custom encryption of QR-Code signatures
            • Search for embedded object with custom serialization of QR-Code signatures
            • Search for encrypted object in QR-code signatures
            • Search for encrypted text in QR-code signatures
            • Search for standard entries in the QR-Code signatures
          • Searching for document signatures excluding external components
          • Searching for document signatures with exception handling
          • Advanced search for Metadata signatures
        • Signing
          • Locating signature on document page
            • Locating signature on page with different measure units
            • Locating signature with different alignments
            • Locating signature with stretch mode
          • Sign documents with exception handling
          • Sign document with Barcode signature and additional settings
          • Sign document with different Text signature implementation
          • Sign document with Digital signature - advanced
          • Sign document with embedded and encrypted data in QR-code signatures
            • Implement custom encryption with QR-Code signatures
            • Implement custom serialization with QR-Code signatures
            • Sign documents with encrypted QR-code text
            • Sign documents with QR-code embedded object
            • Sign documents with standard encryption for QR-code
            • Sign documents with standard QR-code entries
          • Sign document with extensions
          • Sign document with Form Field signature - advanced
          • Sign document with Image signature - advanced
          • Sign document with Metadata signature - advanced
          • Sign document with QR-code signature - advanced
          • Sign document with secure custom Metadata signatures
            • Implement custom encryption with Metadata signatures
            • Implement custom serialization with Metadata signatures
            • Sign documents with encrypted metadata text
            • Sign documents with Metadata embedded object
          • Sign document with Stamp signature - advanced
          • Sign document with Text signature - advanced
          • Sign document with XAdES Digital signature
          • Sign document with XML Advanced Electronic Signature
          • Using Signature Appearances
            • Sign documents with additional image adjustments
            • Sign documents with extra Digital Signature properties
            • Sign Pdf documents with special appearance
            • Sign Pdf documents with custom digital signature appearance
          • Working with signature brush styles
            • Composing signature with linear gradient brush background
            • Composing signature with radial gradient brush background
            • Composing signature with solid brush background
            • Composing signature with texture brush background
        • Verifying
          • Verifying documents with exception handling
          • Verify QR-code signatures
          • Verify Text signatures
        • Updating
          • Updating Barcode signatures with advanced options
          • Updating Image signatures with advanced options
          • Updating multiple signatures of different types
          • Updating QR-code signatures with advanced options
          • Updating Text signature with advanced options
        • Deleting
          • Deleting Barcode signatures - advanced
          • Deleting Image signatures - advanced
          • Deleting multiple signatures of different types
          • Deleting QR-code signatures - advanced
          • Deleting Text signatures - advanced
          • Delete Signatures of the certain types
        • Previewing
          • Generating document preview - advanced
        • Handling exceptions
          • Handling incorrect document password exception
          • Handling password required exception
      • Migration Notes
      • Known issues
        • .NET Standard 2.0 API Limitations
    • Release Notes
      • Release Notes - 2021
        • GroupDocs.Signature for .NET 21.3 Release Notes
        • GroupDocs.Signature for .NET 21.1 Release Notes
      • Release Notes - 2020
        • GroupDocs.Signature for .NET 20.11 Release Notes
        • GroupDocs.Signature for .NET 20.10 Release Notes
        • GroupDocs.Signature for .NET 20.9 Release Notes
        • GroupDocs.Signature for .NET 20.8 Release Notes
        • GroupDocs.Signature for .NET 20.7 Release Notes
        • GroupDocs.Signature for .NET 20.6 Release Notes
        • GroupDocs.Signature for .NET 20.5 Release Notes
        • GroupDocs.Signature for .NET 20.4 Release Notes
        • GroupDocs.Signature for .NET 20.3 Release Notes
        • GroupDocs.Signature for .NET 20.2 Release Notes
        • GroupDocs.Signature for .NET 20.1 Release Notes
      • Release Notes - 2019
        • GroupDocs.Signature for .NET 19.12.1 Release Notes
        • GroupDocs.Signature for .NET 19.12 Release Notes
        • GroupDocs.Signature for .NET 19.10 Release Notes
        • GroupDocs.Signature for .NET 19.9 Release Notes
        • GroupDocs.Signature for .NET 19.8 Release Notes
        • GroupDocs.Signature for .NET 19.6 Release Notes
        • GroupDocs.Signature for .NET 19.5 Release Notes
        • GroupDocs.Signature for .NET 19.4 Release Notes
        • GroupDocs.Signature for .NET 19.3 Release Notes
        • GroupDocs.Signature for .NET 19.1 Release Notes
      • Release Notes - 2018
        • GroupDocs.Signature for .NET 18.12 Release Notes
        • GroupDocs.Signature for .NET 18.11 Release Notes
        • GroupDocs.Signature for .NET 18.10 Release Notes
        • GroupDocs.Signature for .NET 18.9.1 Release Notes
        • GroupDocs.Signature for .NET 18.9 Release Notes
        • GroupDocs.Signature for .NET 18.7.1 Release Notes
        • GroupDocs.Signature for .NET 18.7 Release Notes
        • GroupDocs.Signature for .NET 18.6 Release Notes
        • GroupDocs.Signature for .NET 18.5 Release Notes
        • GroupDocs.Signature for .NET 18.3 Release Notes
        • GroupDocs.Signature for .NET 18.2 Release Notes
        • GroupDocs.Signature for .NET 18.1.1 Release Notes
        • GroupDocs.Signature for .NET 18.1 Release Notes
      • Release Notes - 2017
        • GroupDocs.Signature for .NET 17.12 Release Notes
        • GroupDocs.Signature for .NET 17.11 Release Notes
        • GroupDocs.Signature for .NET 17.10 Release Notes
        • GroupDocs.Signature for .NET 17.8.0 Release Notes
        • GroupDocs.Signature for .NET 17.7.0 Release Notes
        • GroupDocs.Signature for .NET 17.6.0 Release Notes
        • GroupDocs.Signature for .NET 17.5.0 Release Notes
        • GroupDocs.Signature for .NET 17.4.0 Release Notes
        • GroupDocs.Signature for .NET 17.3.0 Release Notes
        • GroupDocs.Signature for .NET 17.2.0 Release Notes
        • GroupDocs.Signature for .NET 17.1.0 Release Notes
      • Release Notes - 2016
        • GroupDocs.Signature for .NET 16.12.0 Release Notes
        • GroupDocs.Signature for .NET 16.10.0 Release Notes
        • GroupDocs.Signature for .NET 3.0.0 Release Notes
  1. Home
  2. GroupDocs.Signature Product Family
  3. GroupDocs.Signature for .NET
  4. Developer Guide
  5. Basic usage
  6. Update signatures in documents

Update signatures in documents

  • Update Barcode signatures in document
  • Update Image signatures in document
  • Update QR-code signatures in document
  • Update Text signatures in document
Generate signature preview Update Barcode signatures in document