Photo Overlay Tool

The Photo Overlay Tool accepts two input photos and outputs a single composite image. It supports common formats (JPG, PNG) and lets users choose an overlay blend mode, opacity, and optional canvas size. This enables quick visual experiments for thumbnails, social posts, or design comps.
Conceptually, inputs are placed on a common canvas, offsets applied, and per-pixel blending executed according to the chosen mode. Normal preserves base with transparency; Multiply and Screen alter luminance, Overlay combines depending on brightness, and Darken/Lighten select extremes. The final image is suitable for upload to social platforms or further editing.
Who benefits: photographers, marketers, and social creators who need fast, repeatable composites without heavy software. Value lies in a concise feature set, predictable output formats, and robust handling of common edge cases such as differing input sizes and alignment offsets.
Limitations: the tool does not perform facial recognition, automatic masking, or multi-layer editing. It focuses strictly on two-image overlay composition and export, producing a single raster file rather than preserving layered data.