Inkwell — Watermark a PDF privately in your browser Skip to workspace Inkwell PDF marking studio العربية Open another file Download marked PDF Mark up a PDF without sending it anywhere. Inkwell stamps text and logo watermarks onto your document entirely inside this browser tab — drag, rotate, tile, and link them, then download. Advertisement Drop a PDF here, or choose a file to begin Open a PDF Your file stays on this device. Nothing is uploaded. Text Logo Drag a mark to reposition it, or use the panel to fine-tune CONFIDENTIAL ↻ ...