Aldus PKZP

File Format
Name	Aldus PKZP
Ontology	Electronic File Formats Compression Aldus PKZP ; ; ;
Extension(s)	.??~, others
Released	≤1991

Some Aldus software distributions, particularlly PageMaker, used an installer-archive format that might be known as Aldus PKZP, or Aldus Zip.

An archive contains a single member file, or a fragment of a file.

The compression scheme is based on PKWARE DCL Implode, though segmented in some way.

Identification

The first 16 bytes of a file are ASCII "ALDUS PKZP 2.00".