PDF Enhancer can add a stamp or watermark to PDF pages. The stamp can be placed either on top of (overlay) or underneath (background) the page content. The opacity of the stamp can be specified as a percentage of the original artwork.
Stamps can be accurately positioned by specifying the horizontal and vertical location of the stamp or by selecting one of automatic centering and sizing options. The software accepts custom values as either an absolute value (.5 inches from bottom) or a mathematical formula such as "mx+mw-.5". This formula would place the stamp .5 inches from the right edge of the page. (mx and mw are the MediaBox x-position and width,respectively.)
PDF Enhancer supports Acrobat layers (also known as Optional Content Groups.) Layers allow a stamp to appear only on-screen, only when printing or both.
Stamps will be applied to all pages or to a user defined range of pages - all odd or even pages, first page only, or a complex page range such as "1-5,10,20-".
PDF Enhancer can store commonly used stamps and watermarks in PDF Enhancer's Stamp Manager and quickly add them to any Target setting.