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## 4.12. Comparing Permission

PDFUnit can compare the access permission of two PDF documents. The following example compares all permission:

    @Test
    public void compareAllPermission() throws Exception {
      String filenameTest = "documentUnderTest.pdf";
      String filenameReference = "reference.pdf";

      AssertThat.document(filenameTest)
                .and(filenameReference)
                .haveSameAccessPermission()
      ;
    }

If you want to compare a single permission you can parameterize the test method with predefined constants:

    @Test
    public void haveSamePermission_MultipleInvocation() throws Exception {
      String filenameTest = "documentUnderTest.pdf";
      String filenameReference = "reference.pdf";

      AssertThat.document(filenameTest)
                .and(filenameReference)
                .haveSameAccessPermission(COPY)
                .haveSameAccessPermission(EXTRACT_CONTENT)
                .haveSameAccessPermission(MODIFY_CONTENT)
      ;
    }

The following constants are available:

    // Available permissions:

    com.pdfunit.Constants.ASSEMBLE_DOCUMENTS
    com.pdfunit.Constants.EXTRACT_CONTENT
    com.pdfunit.Constants.FILL_IN
    com.pdfunit.Constants.MODIFY_ANNOTATIONS
    com.pdfunit.Constants.MODIFY_CONTENT
    com.pdfunit.Constants.PRINT_IN_HIGHQUALITY
    com.pdfunit.Constants.PRINT_DEGRADED_ONLY
    com.pdfunit.Constants.ALLOW_SCREENREADERS

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