Short description of MaskIt 2.0: A plug-in for use with Adobe Acrobat.
MaskIt allows you to mask areas (inside or outside the defined area) of pages of PDF documents so that anything that would normally display or print in that area will no longer appear.
It is particularly useful for removing items such as logos, dirty areas appearing in a PDF file after scanning, confidential information, or headers and footers. Additional items can be added in these masked areas later.