Basic tool for re-ordering pages or watermarking PDF's. All done using pdf-lib for javascript on your browser. Select individual pages, re-order a PDF, Watermark or add a tiny tag.
Instructions: Select a PDF, select a page order or enter your own order or leave order blank if you're only watermarking or adding a tiny tag. Enter an optional Watermark that will be in 50pt diagonal starting in lower left. Provide an optional tag in 4 pt in lower left-hand corner - the default is [n] for filename and [d] for current date. Press Process button.