但是,如果原始文档是由其他引擎(例如Microsoft Excel等)生成的,则Aspose.Cells无法在加载并重新保存文件后使文件保持不变,这将使原始签名无效。 下面的示例代码演示了如何利用 Workbook.AddDigitalSignature(DigitalSignatureCollection digitalSignatureCollection) 方法将数字签名添加到已签名的Excel文件中。请检查此代码中使用...
Process.Start("AddDigitalSignature.xlsx"); } }} 2 VB.NETImports Spire.XlsImports Spire.Xls.Core.MergeSpreadsheet.InterfacesImports System.Security.Cryptography.X509Certificates Namespace DigitalSignature_XLS Class Program ...
3. Add your digital signature to that spreadsheet. Now that you have a PDF, open it with Acrobat. You can sign the document yourself, or you can get it prepared for someone else to sign. Drag and drop fields for your signer to interact with, like signature fields, checkboxes, and a s...
Q1. How do I add a digital signature to a WPS PDF? Here is step-by-step guide on how to add a digital signature to a WPS PDF: Step 1:Open your PDF using WPS PDF. Step 2:Find and click the "Fill and Sign" button at the top. Step 3:A small window will pop up; choose "A...
public class ExcelDigitalSignature { public void addDigitalSignature(String filePath, String signerName, String privateKeyPath, String password) { try { OPCPackage pkg = OPCPackage.open(filePath); SignatureConfigurable signatureConfigurable = (SignatureConfigurable) pkg.getDigitalSignatureConfig(); ...
using Spire.Xls; namespace Delete_Digital_Signature { class Program { static void Main(string[] args) { //创建Workbook实例 Workbook workbook = new Workbook(); //加载Excel文档 workbook.LoadFromFile("AddDigitalSignature.xlsx"); //删除文档中的数字签名 workbook.RemoveAllDigitalSignatures(); //保存结...
System.Diagnostics.Process.Start("AddDigitalSignature.xlsx")End SubEnd ClassEnd Namespace 数字签名添加效果: 2.删除Excel中的数字签名 C# usingSpire.Xls;namespaceRemoveSignature {classProgram {staticvoidMain(string[] args) {//加载Excel文档Workbook workbook =newWorkbook(); ...
Spire.Xls.jar提供了Workbook.addDigitalSignature()方法用于添加数字签名,Workbook.isDigitallySigned()用于检测文档是否签名,以及Workbook.removeAllDigitalSignatures()可删除所有签名。 下面分别以三个代码块来展示如何实现。 1.添加签名 importcom.spire.xls.*; ...
Date;public class AddSignature {public static void main(String[] args) throws Exception {//加载Excel工作簿Workbook wb = new Workbook();wb.loadFromFile("test.xlsx");//添加数字签名wb.addDigitalSignature(new CertificateAndPrivateKey("cer.pfx","123654yes!"), "The Author is Mia"...
System.Diagnostics.Process.Start("AddDigitalSignature.xlsx") End SubEnd ClassEnd Namespace 数字签名添加效果: 正在上传... 取消 2. 删除Excel中的数字签名 C# 正在上传... 取消 using Spire.Xls;namespace RemoveSignature { class Program { staticvoidMain(string[] args) ...