public boolean isAllowExtractionForAccessibility() {
        return allowExtractionForAccessibility;
    }
This constructs an {@link AccessChecker} that will check
for whether or not content should be extracted from a document.

@param allowExtractionForAccessibility if general extraction is
                                       not allowed, is extraction for accessibility allowed
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-pdf-module/src/main/java/org/apache/tika/parser/pdf/AccessChecker.java