# Package org.apache.pdfbox.pdfwriter.compress

Class Summary
CompressParameters: An instance of this class centralizes and provides the configuration for a PDF compression.
COSObjectPool: An instance of this class maps `COSBase` instances to `COSObjectKey`s and allows for a bidirectional lookup.
COSWriterCompressionPool: An instance of this class compresses the contents of a given `PDDocument`.
COSWriterObjectStream: An instance of this class represents an object stream, that compresses a number of `COSObject`s in a stream.