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Add Watermark

docs/tools/add-watermark.md

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Add Watermark

Add text or image watermarks to your PDF pages using a visual editor. You can position the watermark by dragging it directly on the preview, resize it with corner handles, and configure opacity, rotation, font, and color. Each page can have its own watermark position, or you can apply the same watermark to all pages at once.

How It Works

  1. Upload your PDF file.
  2. The editor opens with a live preview of the first page and a draggable watermark overlay.
  3. Choose between Text or Image watermark mode using the toggle buttons.
  4. Configure the watermark settings in the sidebar panel.
  5. Drag the watermark on the preview to position it exactly where you want it. Use the corner handles to resize.
  6. Navigate between pages to set per-page watermarks, or keep Apply to all pages checked.
  7. Click Add Watermark to process and download.

Options

Text watermark settings:

  • Text -- The watermark text (e.g., "CONFIDENTIAL", "DRAFT").
  • Font Size -- From 10 to 200 points. Defaults to 72.
  • Color -- Any color via the color picker.
  • Opacity -- Control transparency from fully transparent to fully opaque.
  • Rotation -- Rotate the watermark text from -180 to 180 degrees.

Image watermark settings:

  • Image Upload -- Upload a PNG, JPG, or other image file to use as the watermark.
  • Opacity -- Control image transparency.
  • Scale -- Resize the image watermark.

General settings:

  • Apply to all pages -- When checked, the same watermark applies to every page. Uncheck to set individual watermarks per page.
  • Page Range -- Specify which pages get the watermark (e.g., "1-3, 5, 7-9" or "all").

Features

  • Visual drag-and-drop positioning on a live PDF preview
  • Resizable watermark with corner handles
  • Text and image watermark modes
  • Per-page or global watermark application
  • Page-by-page navigation in the preview
  • Opacity and rotation controls
  • Page range filtering

Use Cases

  • Marking draft documents with "DRAFT" before circulating for review
  • Adding "CONFIDENTIAL" watermarks to sensitive financial reports
  • Branding documents with a company logo image watermark
  • Stamping "SAMPLE" on product documentation shared with prospects
  • Adding copyright notices to distributed PDF materials

Tips

  • For diagonal watermarks across the page, set a rotation around 45 degrees and increase the font size.
  • Image watermarks with transparent backgrounds (PNG format) blend more naturally with the document content.
  • If you need different watermark text on different pages, uncheck "Apply to all pages" and navigate page by page.