Images Watermark Linux Commands

Adding Watermark to Images Using Linux Commands

This article introduces how to create and generate images with watermarks from the command line (CLI) using ImageMagick, a command line tool for processing images from the command line. convert -size 280x160 xc:none -fill grey…

Shou Arisaka
1 min read
Oct 28, 2025

This article introduces how to create and generate images with watermarks from the command line (CLI) using ImageMagick, a command line tool for processing images from the command line.

convert -size 280x160 xc:none -fill grey \
                -pointsize 24 \
                -gravity NorthWest -draw "text 10,10 'https://fumiya.org'" \
                -gravity SouthEast -draw "text 5,15 'https://fumiya.org'" \
                -channel alpha -evaluate multiply 0.30 \
                miff:- |\
    composite -tile - /mnt/c/_sharex/Screenshots/2019-02/ShareX_ScreenShot_6740af35-df45-4114-84d7-1ce0a124f851.png  wmark_text_tiled.png
  • Original image
![Image](/images/blog/sharex_screenshot_6740af35-df45-4114-84d7-1ce0a124_76367615.png)
  • Image with watermark
![Image](/images/blog/sharex_screenshot_7e5c46f4-0179-4c96-9979-f0893ea2_05db1722.png)

-pointsize 24 … Font size -channel alpha -evaluate multiply 0.30 … opacity

References:

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Shou Arisaka Oct 28, 2025

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