Compare multiple documents protected by password Leave feedback
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NoteThis feature is available only for Word documents, PowerPoint, and Open Document presentations.
GroupDocs.Comparison allows you to compare more than two password-protected documents.
The following code snippets show how to compare several password-protected documents:
The following example compares a password-protected source document with three password-protected target documents from disk and saves a combined result.
'use strict';
// Import the GroupDocs.Comparison for Node.js via Java SDK
const groupdocs = require('@groupdocs/groupdocs.comparison');
// Define file paths for the source document, three target documents, and the output result
const sourceFile = 'sample-files/source_protected.docx';
const targetFile1 = 'sample-files/target_protected.docx';
const targetFile2 = 'sample-files/target2_protected.docx';
const targetFile3 = 'sample-files/target3_protected.docx';
const resultFile = 'result.docx';
// Create a Comparer instance for the source file, providing its password via LoadOptions
const comparer = new groupdocs.Comparer(sourceFile, new groupdocs.LoadOptions('1234'));
// Add the target documents with their passwords
comparer.add(targetFile1, new groupdocs.LoadOptions('5678'));
comparer.add(targetFile2, new groupdocs.LoadOptions('5678'));
comparer.add(targetFile3, new groupdocs.LoadOptions('5678'));
// Perform the comparison and save the merged result to the specified output file
comparer.compare(resultFile);
// Terminate the process with a success exit code
process.exit(0);
This disk-based example:
- Creates a
Comparerinstance for the password-protected source document usingLoadOptions. - Adds each protected target document with its corresponding
LoadOptions(containing the password) viaadd(). - Calls
compare()to generate a single result that merges changes across all password-protected documents.
The following example performs the same operation using Java input streams instead of file paths.
'use strict';
// Import the GroupDocs.Comparison for Node.js via Java SDK
const groupdocs = require('@groupdocs/groupdocs.comparison');
// Import Java bridge and FileInputStream class
const java = require('java');
const InputStream = java.import('java.io.FileInputStream');
// Define file paths for the protected documents and the result
const sourcePath = 'sample-files/source_protected.docx';
const targetPath1 = 'sample-files/target_protected.docx';
const targetPath2 = 'sample-files/target2_protected.docx';
const targetPath3 = 'sample-files/target3_protected.docx';
const resultPath = 'result_multiple_protected.docx';
// Create input streams for source and targets
const sourceStream = new InputStream(sourcePath);
const targetStream1 = new InputStream(targetPath1);
const targetStream2 = new InputStream(targetPath2);
const targetStream3 = new InputStream(targetPath3);
// Initialize comparer for the protected source document
const comparer = new groupdocs.Comparer(sourceStream, new groupdocs.LoadOptions('1234'));
// Add protected target documents using their passwords
comparer.add(targetStream1, new groupdocs.LoadOptions('5678'));
comparer.add(targetStream2, new groupdocs.LoadOptions('5678'));
comparer.add(targetStream3, new groupdocs.LoadOptions('5678'));
// Compare all documents and save the combined result
comparer.compare(resultPath);
// Terminate the process with a success exit code
process.exit(0);
In the stream-based scenario:
- Input streams are opened for the source and each protected target document.
- The
Compareris initialized with the source stream and its password throughLoadOptions. - Target streams are added with their own
LoadOptionsinstances that specify passwords. - The
compare()method runs the multi-document comparison and outputs the merged result file.
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