.NET PDF Library - Create and Manage Accessible PDFs in C#
- Generate accessible PDFs that adhere to the WCAG and PDF/UA standards.
- Split or merge PDFs without losing accessibility tags.
- Convert Word and PPT files to accessible PDF documents.
- Ensure compatibility with screen readers and other assistive technologies.
Try C# PDF Examples in the Playground App.
FREE TRIALNo credit card required.
Explore ExamplesNo credit card required.
Trusted by the worldโs leading companies
.NET PDF library accessible PDF
Overview
The Syncfusion .NET PDF Library provides a feature to create an accessible PDF document compatible with the Web Content Accessibility Guidelines (WCAG) 2.0 (ISO/IEC 40500:2012) and the PDF/UA (ISO 14289-1) standard. An accessible or tagged PDF contains instructions defining the reading order and significance of key elements like figures, images, lists, and tables. This ensures content accessibility for users dependent on assistive technology.
This feature works seamlessly across platforms, including Windows, macOS, Linux, Android, and iOS, through any .NET-based application, such as ASP.NET Core, ASP.NET MVC, Blazor, .NET MAUI, Xamarin, WinForms, WPF, and WinUI.
How to create accessible PDF documents in C#
Create PDF documents with accessible tags using C#, as demonstrated in the following code.
Key features for PDF accessibility
Discover how accessibility features create a PDF/UA standard document with various options.
Auto-tag a PDF document
The Syncfusion PDF .NET library is capable of automatically tagging each PDF element based on the creation order to create accessible PDFs.
Reading order
This feature dictates how content is presented by assistive technologies like screen readers in a PDF. Essentially, the element that appears first is given priority in the reading sequence. You can modify the order of tagged elements in a document using this functionality.
Custom tag
When creating PDF documents from scratch, Syncfusion PDF Library allows you to apply custom tags to elements, ensuring they meet accessibility standards. This feature gives you control over the tagging process, enabling precise structure and improved user accessibility.
Artifact
In PDFs, artifacts are decorative elements like headers, footers, page numbers, and images, which donโt affect the documentโs content. According to PDF/UA, all page content is either part of the logical structure or labeled as an artifact.
Extract accessible tags
This feature allows you to extract accessible tags from existing PDF documents.
Convert Word to PDF/UA
Convert any Word document to a PDF with accessible tags. The conversion preserves the exact layout and appearance of the Word document.
Convert Excel to PDF/UA
Convert any Excel spreadsheet to a PDF with accessible tags. It maintains the Excel fileโs original structure, formatting, and data layout.
Convert PPT to PDF/UA
Convert any PowerPoint presentation to a PDF with accessible tags. This process ensures that the presentationโs original design, formatting, and content are preserved in PDF format.
Convert HTML to accessible PDF
Convert any HTML document to a PDF file with accessible tags. This retains the original formatting, layout, and visual elements of the HTML content, ensuring accessibility in PDF format.
Maintain accessibility tags when splitting and merging PDFs
Ensure that accessibility tags are preserved during the splitting and merging of PDF documents. This functionality guarantees that the accessibility features remain intact, allowing users to navigate and interact with the content effectively.
PDF/UA-2 and Well-Tagged PDF compliance
Enables users to create PDF documents that adhere to both the PDF/UA-2 (ISO 14289-2) and Well-Tagged PDF (WTPDF) standards. Ensures that PDF files maintain a logical structure, proper semantic tagging, and enhanced accessibility for users relying on assistive technologies.
Custom-role mapping in PDF accessibility
This feature allows users to define and assign custom roles to tagged elements in a PDF document, enhancing accessibility and structural flexibility. It ensures that custom roles align with standard accessibility roles, improving compatibility with assistive technologies.
Explore resources for accessible PDFs
Discover valuable resources from our blog and knowledge base on creating accessible PDF documents.
๐ How to add alternative text to images in a tagged PDF using C# and VB.NET
Knowledge base
How to add alternative text to images in a tagged PDF using C# and VB.NET
Explore these resources for comprehensive guides, knowledge base articles, insightful blogs, and ebooks.
Struggling to decide on the right product?
Our comprehensive competitor comparison of PDF frameworks will guide you to the perfect choice.
Frequently Asked Questions
What is an accessible PDF?
An accessible or tagged PDF is a PDF document that contains structural instructions defining the reading order and significance of key elements like figures, images, lists, and tables. This ensures content accessibility for users dependent on assistive technology.
What are some key elements of an accessible PDF?
Key elements include proper document structure using headings, alternative text for images, logical reading order, and navigational aids like bookmarks and hyperlinks.
Why is it important to create accessible PDFs?
Creating accessible PDFs ensures inclusiveness, allowing people with disabilities to access information and services online, promoting equal opportunity, and complying with accessibility regulations.
What is PDF/UA used for?
The PDF/UA standard outlines specific criteria to ensure a PDF is compatible with assistive technology, thereby enabling disabled users to access the documentโs information effectively.
Our Customers Love Us
Here are some of their experiences.
See Real Success Stories
Developers around the world trust Syncfusionโs Essential Studio to simplify complex projects and speed up delivery. With a vast library of UI controls, powerful SDKs, and reliable support, Essential Studio helps teams build enterprise-ready applications with confidence.
Read Our Customer StoriesIndustry
Software development
75% Cost reduction
50% Faster development
โIf somebody is looking for a great tool to work with? Yes. I would definitely recommend Syncfusion for anyone who is trying to develop something meaningful.โ
- Somnath Maji (Founder of Igniatek Consultancy)
Read StoryIndustry
Utilities (oil and gas)
Advanced, flexible features
Empowered users through robust and versatile functionality.
โSyncfusionโs tools have taken care of many things so I can focus on developing the application, instead of developing tools for the application.โ
- James Athyal (Software developer, McDaniel & Associates Consultants Ltd)
Read StoryIndustry
Software and technology
Efficient file management
Streamlined workflows with document libraries without building them from scratch.
โWe really love when the magic happens.โ
- Irvin Dominin (BUILDER WEB Development Manager at Sistemi)
Read StoryIndustry
Software and technology
โWe are Syncfusion fans because of the way Syncfusion treats the support.โ
- Dr. Howard Rybko (CEO of Synchrony Digital)
Read StoryIndustry
IT services and IT consulting
Improved performance
Large datasets handled with easy customization and quick debugging.
Highly customizable
Plug-and-play controls with quick template integration.
โI will surely recommend Syncfusion to others as a third-party control because I think itโs very easily customizable.โ
- Jayesh (Technical Team Lead, Capita)
Read StoryIndustry
Professional services
โWe definitely wanted Syncfusion to help us with our document processing functionality, and we were happy with and satisfied with Syncfusion.โ
- Arvind Naik (Engineering Lead, Vialto Partners)
Read StoryRated by users across the globe
Want to create, view, and edit PDF files in C# or VB.NET?
No credit card required.
Awards
Greatnessโitโs one thing to say you have it, but it means more when others recognize it. Syncfusionยฎ is proud to hold the following industry awards.
