diff --git a/extra/pdf/authors.txt b/unmaintained/pdf/authors.txt similarity index 100% rename from extra/pdf/authors.txt rename to unmaintained/pdf/authors.txt diff --git a/extra/pdf/libhpdf/libhpdf.factor b/unmaintained/pdf/libhpdf/libhpdf.factor similarity index 100% rename from extra/pdf/libhpdf/libhpdf.factor rename to unmaintained/pdf/libhpdf/libhpdf.factor diff --git a/extra/pdf/pdf-tests.factor b/unmaintained/pdf/pdf-tests.factor similarity index 100% rename from extra/pdf/pdf-tests.factor rename to unmaintained/pdf/pdf-tests.factor diff --git a/extra/pdf/pdf.factor b/unmaintained/pdf/pdf.factor similarity index 100% rename from extra/pdf/pdf.factor rename to unmaintained/pdf/pdf.factor diff --git a/extra/pdf/readme.txt b/unmaintained/pdf/readme.txt similarity index 100% rename from extra/pdf/readme.txt rename to unmaintained/pdf/readme.txt