cargo install firemark

git clone https://github.com/Vitruves/firemark.git
cd firemark
cargo install --path .

# Watermark a single image
firemark photo_id.png -m "Flat rental — SCI Dupont — March 2026"

# Watermark a PDF
firemark tax_notice.pdf -m "CONFIDENTIAL" -s "Do not distribute"

# Watermark an entire folder recursively
firemark ./documents/ -R -m "Sent to Agency X" -t stamp

# Preview without writing files
firemark id_card.jpg -m "Draft" -n

firemark doc.pdf -t stamp -m "CONFIDENTIAL" --border --color red

firemark id.png -m "Rental application" --filigrane moire
firemark id.png -m "Rental application" --filigrane none   # disable

firemark doc.png -m "CONFIDENTIAL" --no-anti-ai

-m, --main-text           Primary watermark text
-s, --secondary-text      Secondary text line
-t, --type                Watermark style (see table above)
-o, --output              Output file path
-S, --suffix              Custom output suffix (default: "watermarked")
-c, --color               Color — name or #RRGGBB (default: blue)
-O, --opacity             Opacity 0.0–1.0 (default: 0.5)
-r, --rotation            Angle in degrees (default: -45)
-p, --position            center, top-left, top-right, bottom-left, bottom-right, tile
-f, --font                Font name or path to .ttf/.otf
-I, --image               Overlay an image as watermark
    --qr-data             Embed a QR code with custom data
    --qr-code-position    QR code placement (default: center)
    --qr-code-size        QR code size in pixels (default: auto)
    --border              Draw a border around the watermark
    --shadow              Add a drop shadow
    --filigrane           Security filigrane style (default: guilloche)
    --no-anti-ai          Disable adversarial prompt injection (on by default)

    --pages           Pages to watermark (e.g. 1,3-5 or "all")
    --skip-pages      Pages to skip
    --behind          Place watermark behind content
    --no-flatten      Keep layers separate (flattened by default)
    --dpi             Render resolution (default: 150)

# Process all images and PDFs in a folder
firemark ./inbox/ -m "INTERNAL" -t tile

# Recursive, 8 threads, custom suffix
firemark ./docs/ -R -j 8 -m "Draft" -S draft

# Dry run — list what would be processed
firemark ./docs/ -R -m "Draft" -n

# Global defaults
main_text = "CONFIDENTIAL"
secondary_text = "{author} — {date}"
watermark_type = "diagonal"
color = "#1a3c6e"
opacity = 0.45
font_weight = "bold"
filigrane = "guilloche"
border = true

[preset.ultra-secure]
main_text = "CONFIDENTIAL — {author}"
watermark_type = "tile"
color = "#CC0000"
opacity = 0.6
filigrane = "full"
anti_ai = true
qr_data = "firemark://{author}/{timestamp}/{uuid}"
strip_metadata = true

[preset.light]
main_text = "COPY"
watermark_type = "diagonal"
color = "#555555"
opacity = 0.3
filigrane = "none"
anti_ai = false

firemark doc.pdf --config firemark.toml
firemark doc.pdf --config firemark.toml --preset ultra-secure
firemark doc.pdf --config firemark.toml --preset light
firemark doc.pdf --save-preset mypreset    # save current flags
firemark --list-presets                     # list available presets