ObviousPDF 1.5.0

ObviousPDF

Enabling you create standards-compliant, more accessible PDFs in .NET.

Built from ISO 32000. Accessibility-first by design.

Quick Start

Installation

1. Download ObviousPDF.dll from lib/net8.0/ in this repository
2. Add a reference to your .NET 8 project
3. Import the namespace:

using ObviousPDF;

Hello World

using ObviousPDF;

var doc = new PdfDocument();
var page = doc.AddPage();

// Add text
page.AddText("Hello, World!", 72, 700, 
    new PdfTextOptions { FontSize = 24 });

// Save
doc.Save("output.pdf");

Features

• Zero External Dependencies — Ships as a standalone DLL; no NuGet package dependencies required at runtime
• Easy Accessibility (v1.2.0) — One-line PDF/UA compliance: doc.EnableAccessibility() in C#, "accessible": true in JSON, accessible="true" in XML, or accessible,true in CSV
• Three Input Pipelines — Generate accessible PDFs from JSON (ObviousPDF.Json), XML (ObviousPDF.Xml), or CSV (ObviousPDF.Csv) — all produce identical output
• Accessibility Report (v1.3.0) — Automated accessibility feedback: doc.GenerateAccessibilityReport = true or "generateAccessibilityReport": true in JSON/XML/CSV
• PDF/UA Accessibility — Built-in support for tagged PDFs, accessibility metadata, and automated compliance checking
• Encryption & Security — Digital signatures, user/owner passwords, AES-128/AES-256 encryption
• Advanced Layouts — Multi-column layouts, nested tables, reusable form templates (XObjects)
• Rich Content — Vector graphics, gradients, patterns, images, embedded fonts, interactive forms
• Optimization — Compact serialization, linearized PDFs for web streaming, font subsetting
• International Support — CJK (Chinese/Japanese/Korean) text with ruby annotations, pronunciation guides
• Standards Compliance — PDF/A archival, PDF/UA accessibility, WCAG guidelines

Documentation

• API Reference — Complete class and method documentation
• LLM Guide — Comprehensive guide for AI coding assistants (ChatGPT, Claude, etc.)
• Full Documentation Site — Examples, tutorials, and more
• License Agreement — Licensing terms and conditions

Licensing

Free for individuals and organizations with fewer than 10 employees.

$100/year for organizations with 10+ employees (unlimited developers). Get your enterprise license at enterprise.obviouspdf.com or email license@obviouspdf.com for inquiries.

See LICENSE for full details.

Key Characteristics

Getting Started

1. Download ObviousPDF.dll from lib/net8.0/ in this repository
2. Add reference to your .NET 8 project
3. Read the API Reference for comprehensive documentation
4. Use the LLM Guide if working with AI coding assistants
5. Visit obviouspdf.com for examples and tutorials

⚠️ Disclaimer: The automated accessibility reports and checks provided by ObviousPDF are intended solely to assist in the assessment of document accessibility. They are not a comprehensive accessibility audit. To confirm that WCAG or PDF/UA standards are fully met, it is recommended to have human assessment by an accessibility specialist.

Support

For issues, feature requests, or questions:

• Visit obviouspdf.com for documentation and examples
• See License Agreement for warranty and liability information

Roadmap

• Form XObject templates library
• Barcode & QR code support
• Advanced typography (kerning, ligatures)
• PDF comparison & merge utilities

© 2026 Relevant LLC. ObviousPDF is a product of Relevant LLC.