foliojs/pdfkit
Pdfkit
pdfkit is a JavaScript PDF generation library used to programmatically create binary PDF documents in Node.js and browser environments. It functions as a vector graphics engine for rendering paths, shapes, gradients, and tiling patterns, and as a tool for producing rich text and tagged documents that follow international accessibility standards for screen reader compatibility.
The library includes a security and encryption utility for applying document encryption and restricting user permissions regarding printing, copying, or editing. It also serves as a form and annotation tool, enabling the embedding of fillable fields, interactive hyperlinks, and document annotations.
The system covers a broad range of capabilities including typography with automatic line wrapping and custom font embedding, as well as media asset management for inserting images and external file attachments. It further supports the creation of structural elements such as tables and internal navigation links.
Features
- PDF Generation - Creates binary PDF files from a programmatic JavaScript interface for use in server or browser environments.
- PDF Generation Libraries - A comprehensive library for programmatically creating and formatting professional PDF documents using JavaScript.
- Accessible PDF Generation - Provides capabilities for generating tagged PDF documents that follow international accessibility standards for screen reader compatibility.
- Accessibility Tagging - Organizes content into a hierarchy of tags and elements to enable screen reader compatibility.
- Accessible PDF Generation - Generates tagged PDF documents that follow international accessibility standards for screen reader compatibility.
- Programmatic PDF Layout Tools - Provides a programmatic JavaScript interface for defining PDF dimensions, layout, and content.
- PDF Rendering Primitives - Provides a low-level engine for rendering vector paths, shapes, gradients, and tiling patterns directly into PDF files.
- Accessible Document Creation - Generates tagged PDF files that follow international accessibility standards for screen reader compatibility.
- Interactive PDF Form Fields - Adds fillable fields and configurable input elements to PDF documents to collect user information.
- PDF Form and Annotation Tools - Enables the embedding of fillable fields, interactive hyperlinks, and document annotations into PDF outputs.
- Rich Text Styling - Provides rich text layout capabilities including automatic line wrapping, alignments, and bulleted lists.
- PDF Structural Elements - Adds structural components like tables, outlines, and interactive forms to organize document content.
- Binary Document Stream Generators - Writes PDF content as a sequential stream of bytes to minimize memory usage during document generation.
- Vector Graphics Editors - Draws complex shapes, rounded rectangles, tiling patterns, and multi-stop gradients.
- Vector-Based Path Rendering - Implements a vector-based rendering pipeline for drawing shapes and paths using a coordinate system.
- Vector Graphics Renderers - Renders vector shapes, paths, and gradients using a 2D coordinate system and path parsing logic.
- Graphics State Pipelines - Maintains a global drawing state for colors, line widths, and transformations that apply to subsequent commands.
- PDF Image Embedding - Inserts JPEG and PNG images into documents while maintaining transparency and orientation data.
- PDF Permission Controls - Includes a security utility for applying document encryption and restricting user permissions regarding printing, copying, or editing.
- Document Encryption - Provides mechanisms for encrypting PDF files and restricting user permissions to prevent unauthorized editing or printing.
- Interactive PDF Design - Adds fillable forms, internal navigation links, and interactive annotations to static documents.
- Font Embedding Utilities - Integrates external font files into the document structure to ensure consistent text rendering across platforms.
- Document Layout Design - Enables the design of professional page layouts combining rich text, custom fonts, and vector graphics.
- Document Processing - Cross-environment PDF document generation library.
- Distributed Systems - Library for generating PDF documents.
