Watermark on PDF software set image size with help of option like original size, Fit to page and custom page to modify height and width. Software provide option to set stamp on first page, last page, all pages, odd pages, even pages. User can change or set Meta properties such as author, title, subject and keywords. Download free trial version of Apex PDF Watermarking Software from www.pdfwatermarksoftware.com to create watermarking PDF document.