tc-lib-pdf-graph

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20 Apr 2026

Overview

tc-lib-pdf-graph implements low-level drawing operations used to build PDF graphic content streams.

It exposes path, paint, clipping, shading, and transform primitives while keeping APIs close to PDF graphics operators, making it a solid foundation for vector rendering and chart-like drawing.

Repository and API Docs

Project Metadata

Item	Value
Namespace	`\Com\Tecnick\Pdf\Graph`
License	GNU LGPL v3

Installation

composer require tecnickcom/tc-lib-pdf-graph

Where It Fits

Use this package when rendering diagrams, overlays, or reusable vector components in PDFs.

Features

Drawing Primitives

Paths, lines, curves, and clipping operations
Style handling for stroke/fill combinations
Gradient and shading support

Transformations

Matrix-based geometric transforms
Coordinate conversion helpers
PDF/A-aware behavior controls

Integration Notes

Keep coordinate systems and transforms explicit in reusable helpers.
Snapshot complex graphic outputs to detect regressions after upgrades.
Prefer reusable vector templates for repeated visual components.

Requirements

PHP 8.2 or later
Extension: zlib
Composer

Example

<?php

require_once __DIR__ . '/vendor/autoload.php';

$draw = new \Com\Tecnick\Pdf\Graph\Draw(
	1.0,
	210,
	297,
	new \Com\Tecnick\Color\Pdf(),
	new \Com\Tecnick\Pdf\Encrypt\Encrypt(),
	false
);

echo $draw->getClippingRect(10, 10, 50, 20);

Development and Packaging

QA and local checks: make deps, make help, make qa
Packaging: make rpm, make deb