x offset Pixel-independent offset relative to the choice of alignment on the x-axis. alignment Use these controls to align the watermark to any edge or the center of the image. Alternatively you can scale the watermark relative to the “larger border” or “smaller border”. The default setting “image” scales the watermark relative to the horizontal image size. scale on The reference for the scale parameter. rotate The rotation angle of the watermark. scale The scale of the watermark, with respect to the option selected in the “scale on” parameter. opacity The opacity of the watermark’s rendering. Fonts can be searched by name and a preview is shown next to the font name. Click on the field to open a dialog box showing the fonts available on your system. text font The font to use (default “DejaVu Sans Book”). Click on the colored field to open a color selector dialog which offers you a choice of commonly used colors, or allows you to define a color in RGB color space. An example is supplied as simple-text.svg. text A free text field in which you can enter up to 63 characters to be printed where referenced by the corresponding watermark. The extension of the file (png/svg) is shown in brackets. Use the reload button to update the list to include any newly-added watermarks. 🔗module controls marker Choose the watermark to apply. $(WATERMARK_FONT_WEIGHT) The font weight (boldness) $(WATERMARK_FONT_STYLE) The font style (normal, oblique, italic) $(WATERMARK_FONT_FAMILY) The font family to use for $WATERMARK_TEXT $(WATERMARK_COLOR) The color to use for $WATERMARK_TEXT $(WATERMARK_TEXT) A short free text (max. In addition to this list you can also use the variable strings defined in the variables section. The following is a list of variable strings that are supported for substitution within an SVG document. Once in place, use the reload button update the list of available watermarks. User-designed watermarks should be placed into the directory $HOME/.config/darktable/watermarks. The SVG processor in darktable can also substitute strings within an SVG document, allowing image-dependent information to be included in the watermark. Watermarks are standard SVG documents and can be designed using Inkscape. Render a vector-based overlay onto your image.
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