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0001 .. meta::
0002    :description: digiKam Batch Queue Manager Base Tools
0003    :keywords: digiKam, documentation, user manual, photo management, open source, free, learn, easy, batch, queue, manager, watermark, image, text
0005 .. metadata-placeholder
0007    :authors: - digiKam Team
0009    :license: see Credits and License page for details (https://docs.digikam.org/en/credits_license.html)
0011 .. _watermark_tool:
0013 Watermark
0014 =========
0016 While there are many ways to protect your photos from unauthorized use, watermarking still remains the simplest and probably the most effective technique that can help you to identify you as the creator and make it difficult to use your works without permission.
0018 digiKam supports watermarking. The watermarking function in digiKam is available under the Batch Queue Manager tool which you can use to watermark multiple photos in one go. Drag the photos you want to watermark from a digiKam album onto the **Queues** pane to add them to the current queue. Click on the **Base Tools** tab in the **Control Panel** pane and double-click on the **Decorate/Add Watermark** tool to add it to the **Assigned Tools** pane.
0020 .. contents::
0022 Lead Settings
0023 -------------
0025 digiKam can use **Text** or **Image** as watermarks, and you can choose the desired watermark type at the top of the Tool Settings pane with the **Watermark type** option. Check **Use Absolute Size** option if you want the watermark to use the given size of the font or the image without any adjustment to the actual image.
0027 .. figure:: images/bqm_watermark_lead_settings.webp
0028     :alt:
0029     :align: center
0031     The Batch Queue Manager Watermark Tool Lead Settings
0033 Image Settings
0034 --------------
0036 If you want to use the **Image** watermark type, make sure that you already have a graphics file handy, and select it from the file system. Check **Ignore Watermark aspect Ratio** option if you want the watermark to ignore its own aspect ratio and use the image's aspect ratio instead. Check **Add transparency to watermark image** if you want watermark to be transparent and tune the **Opacity** value in percentages with the option just below.
0039 .. figure:: images/bqm_watermark_image_settings.webp
0040     :alt:
0041     :align: center
0043     The Batch Queue Manager Watermark Tool Image Settings
0045 Text Settings
0046 -------------
0048 The **Text** watermark is more simple to use as it does not require an external source of contents to generate the mark over the images. In **Watermark text** field, enter the desired string to use superimposed contents. Below, you can tune the **Font** properties to write text on images, as the **name**, the **style**, and the **color** (the **size** is auto-calculated). With **Text opacity** you can adjust the transparency of the watermark text, where 100 is fully opaque and 0 is fully transparent. Finally, the **Use background** allows to draw the text over a colored background where you can choose the color and the transparency level.
0050 .. figure:: images/bqm_watermark_text_settings.webp
0051     :alt:
0052     :align: center
0054     The Batch Queue Manager Watermark Tool Text Settings
0057 Geometry Settings
0058 -----------------
0060 Specify in this view the watermark geometry settings such as **Placement Position**, **Rotation**, **Size**, and **Margins**.
0062 **Placement Type** is the lead geometry setting which will enable or disable other options from this view. **Specific Location** allows to set a static position of the watermark. **Systematic Repetition** will place the watermark in loop to cover the images. **Random Repetition** will place the watermark randomly over the images.
0064 **Density of watermark repetition** is Disabled in **Specific Location** mode. When you choose to have the watermark repeated many times in the **Placement Type**, you can specify here whether the repetition.
0066 **Randomize watermark orientation** is enabled in **Random Repetition** mode only. When you choose to have the watermark repeated randomly in the **Placement Type**, you can specify here to randomly rotate the watermark (0, 90, 180, 270 degrees).
0068 Use **Sparsity Factor** option to get more control over the sparsity of watermark repetition. The higher the value the sparser the watermarks get. Use floating point values, typically between 1.0 and 3.0. It can also be less than 1.0.
0070 **Placement Position** allows to specify the area on the image to write the watermark. Available values are **Top left**, **Top right**, **Bottom left**, **Bottom right**, **Center**, **Top center**, and **Bottom center**.
0072 **Rotation** allows to specify the amount of degrees to rotate the watermark. Available values are **0 degrees**, **90 degrees CW**, **180 degrees**, and **270 degrees CW**.
0074 **Size** setting allows to specify the size of watermark, as a percentage of the marked image.
0076 **X margin** and **Y margin** allow to specify the margin from the edge in X and Y directions, as a percentage of the marked image.
0078 .. figure:: images/bqm_watermark_geometry_settings.webp
0079     :alt:
0080     :align: center
0082     The Batch Queue Manager Watermark Tool Geometry Settings
0084 Results
0085 -------
0087 Once you are satisfied with the settings, hit the **Run** button, and once digiKam’s finished, you’ll find the watermarked photos in the target folder. See below the samples of text and image watermarks applied to the same image using transparency.
0089 .. figure:: images/bqm_watermark_example_image.webp
0090     :width: 300px
0091     :alt:
0092     :align: center
0094     Sample of Centered Image Watermark Applied to a photo Using Transparency
0096 .. figure:: images/bqm_watermark_example_text.webp
0097     :width: 300px
0098     :alt:
0099     :align: center
0101     Sample of Systematic Repeated Text Watermark Applied to a photo Using Transparency