One of the plugins in IoFlex's IoBookMaker Suite,
IoImport is a powerful tool for managing pages in a PDF file. It includes
the following features
A new PDF can be created by importing pages from a set of individual
TIFF files, another PDF, or acquired from a new scanning operation.
An existing PDF file can be specified to receive the pages, using a
variety of page insertion and replacement options.
For pages in either the source PDF or set of TIFFs to import, or the
destination PDF, a page preview with zoom window is available to assist
with proper page sequencing.
An optional companion feature supports automated document assembly or
revision. A script contained in a text file specifies the sequence of
operations to be performed in a batch process. This simplifies the
application of a set of "change pages" to a document in PDF format that
will be subject to periodic revisions.
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.