pdflib-syntax-drawing

What problem does it solve?

Many developers produce visually incorrect PDFs because of subtle pdf-lib API differences: color values in the wrong range, mismatched option names for lines versus shapes, incorrect ellipse sizing, and coordinate-origin confusion for top-aligned placement. This Skill captures the precise semantics and best practices for drawing shapes, lines, and SVG paths so generated pdf-lib code is correct and predictable.

Core Features & Use Cases

• Explicit guidance on color constructors and the required 0.0–1.0 numeric range to avoid silent color errors.
• Clear property mappings and method rules for drawRectangle, drawSquare, drawCircle, drawEllipse, drawLine, and drawSvgPath, including stroke/fill, dash, cap, and blend options.
• Practical examples for building diagrams, header bars, separators, annotations, and complex SVG path compositions in PDF documents.

Quick Start

Render a rotated dashed rectangle and a semi-transparent overlapping circle at the top of an A4 page using pdf-lib 1.x while ensuring rgb/cmyk/grayscale values are in the 0.0–1.0 range and positions are computed from page.getSize().