Watermarking is the fastest way to visually mark a PDF as confidential, draft, or belonging to you. The Rankato Watermarker overlays text (with any font, color, and rotation) or an image (typically a logo) on every page. Configurable position (nine anchor points + tiling), opacity, and rotation. All processing is client-side via pdf-lib.
Text and image modes
Text: type your watermark ("CONFIDENTIAL", copyright notice, URL). Pick font, size, color, opacity. Image: upload a PNG or JPEG (transparent PNG works best for logos). Both modes support the same positioning and rotation controls.
Position and tiling
Nine anchor positions or explicit x/y offset. Tile option repeats the watermark diagonally across the whole page — much harder to crop out but visually intrusive. Great for high-value proofs; corner placement for subtle branding.
Which pages get watermarked
Default: every page. Toggle to specify a range (e.g., only first page for a signature, or all except cover). Per-page override lets you skip specific pages entirely.