The following code shows how to use multiple documents in one test.

@Test
public void textInMultipleDocuments() throws Exception {
  String fileName1 = "document_en.pdf";
  String fileName2 = "document_es.pdf";
  String fileName3 = "document_de.pdf";
  File file1 = new File(fileName1);
  File file2 = new File(fileName2);
  File file3 = new File(fileName3);
  File[] files = {file1, file2, file3};
  
  String expectedDate = "28.09.2014";
  String expectedDocumentID = "XX-123";
  
  AssertThat.eachDocument(files)
            .restrictedTo(FIRST_PAGE)
            .hasText()
            .containing(expectedDate)
            .containing(expectedDocumentID)
  ;
}

The PDF-documents are passed to the method eachDocument() as a String[]. The types File[], InputStream[], and URL[] can also be used.