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I need an efficient and quick way to place more than one watermark on each page of a PDF file. With some files, a single watermark is fine, in the same position on each page. In other files, there need to be multiple watermarks (all the same) in different positions on the page (the same positions on each page of the file). The script should: 1. Select a PDF from the server, or ask for an upload of a PDF file by the user; 2. Accept input of a single text string, for example, "LIcensed to Teacher Lee, Big High School" from the user. This should be Unicode UTF-16 encoded as Chinese may be used. 2a. Allow the user to adjust the size at which the text string will print on the PDF. 3. Place that text string on the PDF file in specified location(s), at between 1 and 8 locations on the same page -- allowing the user to adjust the location of the text by specifying measurements (offset from top/bottom, offset from left/right) in inches; 4. Give the user the option NOT to watermark the first page of the PDF (but still watermark the other pages). 5. Developer should provide the necessary scripts and resources, including any appropriate libraries to handle PDF generation/editing, so that after installing these and nothing more (assume a working PHP installation on the server or AMPPS on the local host) the script will run on a local host or on a server. Largest PDF size is letter size. PDFs may have up to 100 pages, all of which must be watermarked by the script.