Compare PDF Documents, Find Differences, and Accept or Reject Changes using Java

readme.md

Related blog post:

• Compare PDF Documents using Java
• Compare Password Protected PDF Files in Java

AcceptRejectPdfComparisonChanges.java

// Accept and reject identified changes by comparing PDF documents using Java

Comparer comparer = new Comparer("path/document-1.pdf");
comparer.add("path/document-2.pdf");

ChangeInfo[] changes = comparer.getChanges();

changes[0].setComparisonAction(ComparisonAction.REJECT);
changes[1].setComparisonAction(ComparisonAction.ACCEPT);

comparer.applyChanges("path/accept-reject-change.pdf", new ApplyChangeOptions(changes));

CompareMultiplePdfFiles.java

// Compare Multiple PDF Documents using Java

Comparer comparer = new Comparer("path/document-1.pdf");
comparer.add("path/document-2.pdf");
comparer.add("path/document-3.pdf");
comparer.add("path/document-4.pdf");

comparer.compare("path/multiple-pdf-comparison-result.pdf");

ComparePDF.java

// Compare Two PDF Documents and Highlight Changes using Java

Comparer comparer = new Comparer("path/document-ver1.pdf");
comparer.add("path/document-ver2.pdf");

comparer.compare("path/comparison-result.pdf");

CompareProtectedPdfFiles.java

// Compare Password Protected PDF Documents using Java
 
Comparer comparer = new Comparer("path/protected-document-ver1.pdf", new LoadOptions("SourceFilePassword"));
comparer.add("path/protected-document-ver2.pdf", new LoadOptions("TargetFilePassword"));

comparer.compare("path/protected-files-comparison-result.pdf");