ExisPdfPythonDemo/examples/07_watermark.py at main · exisllc/ExisPdfPythonDemo · GitHub

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"""
07 - Watermark.

Adds text watermarks with positioning, color, and opacity control.

Run:
    python examples/07_watermark.py
"""

from _common import (
    header, info, success, ensure_output_dir, get_sample_pdf, init_license,
)

import exis_pdfeditor


def main() -> None:
    init_license()
    header("Demo 07 - Watermark")

    sample = get_sample_pdf()
    out = ensure_output_dir()

    # Basic diagonal watermark
    info("Basic 'DRAFT' watermark (default style)...")
    result = exis_pdfeditor.watermark(
        str(sample),
        str(out / "07-draft.pdf"),
        "DRAFT",
    )
    success(f"Watermarked {result.pagesWatermarked} of {result.totalPages} pages")

    # Custom: large red CONFIDENTIAL across the page
    info("Large red 'CONFIDENTIAL' across the page...")
    result = exis_pdfeditor.watermark(
        str(sample),
        str(out / "07-confidential.pdf"),
        "CONFIDENTIAL",
        position="across",
        font_size=72,
        text_color={"r": 1, "g": 0, "b": 0},
        opacity=0.15,
    )
    success(f"Watermarked {result.pagesWatermarked} pages with red CONFIDENTIAL")

    # Footer-style watermark on page 1 only
    info("Footer-style watermark on page 1 only...")
    result = exis_pdfeditor.watermark(
        str(sample),
        str(out / "07-footer-page1.pdf"),
        "Internal Use Only - Page 1",
        position="bottom",
        font_size=14,
        opacity=0.5,
        page_range=[1],
    )
    success(f"Footer added to {result.pagesWatermarked} page(s)")


if __name__ == "__main__":
    main()