ASP.NET Core PDF Viewer
ASP.NET Core PDF Viewer for Fast, Secure, and Advanced Viewing
No credit card required. | 833K+ downloads
- Precise PDF rendering
- Fast loading, even for large files
- Private, secure, and customizable viewer
Trusted by the world’s leading companies
Why do you need the ASP.NET Core PDF Viewer?
Simplify PDF integration in your ASP.NET Core applications with a ready-to-use, high-performance viewer. Eliminate the complexity of building from scratch and deliver consistent rendering, smooth navigation, and advanced capabilities like annotation and form filling out of the box. Built for scalability and security, it ensures fast loading, reliable performance with large documents, full data control, and flexible customization, helping you create fast, secure, and enterprise-ready document workflows with minimal effort.
View and engage with PDFs instantly—highlight, annotate, complete forms, and add signatures easily.
Get started in minutes
Follow these steps to integrate the PDF Viewer into your ASP.NET Core application.
1
Install the PDF Viewer package
Install the Syncfusion.EJ2.AspNet.Core NuGet package.
dotnet add package Syncfusion.EJ2.AspNet.Core2
Add the tag helper
Import the Syncfusion.EJ2 Tag Helper in the Pages/_ViewImports.cshtml.
@addTagHelper *, Syncfusion.EJ23
Add stylesheet and script resources
Include the required stylesheet and script references, then register the Script Manager in Pages/Shared/_Layout.cshtml to apply proper layout and theme styling.
<head>
<!-- Other head elements -->
<!-- Syncfusion ASP.NET Core components styles -->
<link rel="stylesheet" href="https://cdn.syncfusion.com/ej2/33.2.3/fluent.css" />
<!-- Syncfusion ASP.NET Core components scripts -->
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js"></script>
</head>4
Register the Script Manager
Register the script manager ejs-scripts tag at the end of the <body> element in the ~/Pages/Shared/_Layout.cshtml file.
<body>
<!-- Other body content -->
<!-- Syncfusion ASP.NET Core Script Manager -->
<ejs-scripts></ejs-scripts>
</body>5
Add the PDF Viewer component
Add the PDF Viewer component tag helper in Pages/Index.cshtml and start building instantly.
<div>
<ejs-pdfviewer id="pdfviewer" documentPath="https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf">
</ejs-pdfviewer>
</div>AI-assisted Development
Build AI-powered PDF viewer features faster
Build advanced PDF viewing features faster with Syncfusion AI tools that turn requirements into seamless document rendering experiences.
Agent Skills
Create accurate PDF Viewer code with Syncfusion Agent Skills for faster development
Example Prompt Show me how to load a PDF file in Syncfusion PDF Viewer for ASP.NET Core.
AI Coding Assistant
Generate accurate PDF Viewer code with AI that configures and debugs code directly in your IDE
Example Prompt Show me how to create and display a PDF Viewer in ASP.NET Core with basic configuration.
Enterprise-ready and powerful ASP.NET Core PDF Viewer
Delivers true-to-source accuracy
The ASP.NET Core PDF Viewer operates entirely within your application, giving you full control over how documents are processed and accessed. It protects sensitive information by eliminating unnecessary external dependencies and ensuring a controlled, self-contained environment.
- Preserves layout structure and typographic clarity.
- Supports reliable rendering of complex fonts and graphics across documents.
- Retains document formatting across different screen sizes.
Optimized for large documents
The ASP.NET Core PDF Viewer is built for speed and efficiency, enabling quick document access and smooth interaction regardless of file size. It ensures responsive performance across devices, making it suitable for applications that handle large or complex PDFs.
- Loads pages progressively to improve performance.
- Enables smooth navigation even in large and multi-page documents.
- Supports seamless scrolling and page transitions.
No data leaves your app
The ASP.NET Core PDF Viewer operates entirely within your application, giving you full control over how documents are processed and accessed. It helps protect sensitive information by eliminating unnecessary external dependencies and ensuring a controlled, self-contained environment.
- Prevents data exposure to external services.
- Supports compliance with standards like HIPAA, GDPR, and SOC 2.
- Ensures secure handling of confidential documents
Advanced navigation and search tools
Thumbnail navigation
Quickly browse and jump between document pages using a visual thumbnail panel. Enhance navigation efficiency by previewing page content and instantly accessing specific sections.
Bookmark navigation
Navigate structured documents effortlessly with interactive bookmarks. Quickly access important sections and maintain context within large or complex PDF files.
Hyperlink navigation
Seamlessly move across internal and external content using embedded hyperlinks. Enable fast access to related pages, sections, or external resources within the document.
Text search
Locate specific words or phrases instantly with powerful search functionality. Improve productivity by highlighting matches and efficiently navigating through results efficiently.
Text selection
Select and interact with document text for copying or further processing. Enhance usability by enabling precise text selection throughout the PDF.
Zooming
Adjust document view with flexible zoom controls for better readability. Easily zoom in or out to examine details or get an overall view of the document.
Seamless PDF editing experience
Provide secure, interactive, and professional PDF viewing directly within your application. The PDF Viewer delivers powerful tools for reviewing, form filling, and document protection—all seamlessly executed in the browser.
Rich annotation tools
Add highlights, sticky notes, stamps, freehand drawings, shapes, and ink annotations directly on PDFs. Users can review files, import or export annotations, and maintain consistent feedback throughout workflows.
Form filling and designer
Complete interactive forms using text fields, checkboxes, radio buttons, and dropdowns, or design new forms within the viewer. Edit, preview, and save forms in real time to streamline data collection.
Secure signatures
Use handwritten, typed, or image-based electronic signatures, or verify digital certificates to confirm authenticity. Safeguard sensitive content using built-in redaction tools that permanently eliminate confidential data from a document.
Organize pages
Add, remove, reorder, or rotate PDF pages and import pages from other files. Download the updated PDF instantly.
Accessibility and global readiness
WCAG-compliant viewer
Fully complies with WCAG standards, offering features like keyboard navigation, ARIA labels, and high-contrast themes to support users with disabilities.
Multilingual and RTL support
Provides complete localization capabilities, including right-to-left (RTL) rendering, for smooth adaptation to global languages and regional workflows.
Screen reader compatibility
Ensures all PDF content, form fields, and controls are accessible to screen readers, delivering an inclusive experience for all users.
UI customization and extensibility
Experience an ASP.NET Core PDF Viewer built for developers, enabling easy integration and extensive control over the user interface and behavior. It supports tailored workflows, adaptable layouts, and scalable configurations to meet diverse application needs.
- Customize the UI with configurable toolbars, themes, and localization options
- Extend functionality using APIs and integrate with backend services or cloud storage
- Adapt the viewer to different use cases with flexible layouts and feature controls
Industry-specific use cases
The ASP.NET Core PDF Viewer is designed to meet the specialized needs of various industries, empowering professionals across sectors to securely view, annotate, and manage PDF documents with confidence.
No credit card required.
Healthcare
Healthcare professionals can securely access, annotate, and share patient records, lab results, and consent forms in PDF format using HIPAA-compliant features that ensure protected data handling.
Legal and compliance
With advanced tools for annotation and digital signatures, law firms and compliance teams can efficiently review contracts, case files, and regulatory documents.
Education and e-learning
Educators and students can highlight, comment on, and annotate course materials, research papers, and e-books to enhance engagement and simplify content review.
Finance and banking
Finance teams can directly validate statements, invoices, and audit reports within PDFs. Features like text search, form filling, and digital signatures streamline approvals and support regulatory compliance.
See Why Developers Love Syncfusion
These real-time stories shows the impact of our PDF Viewer SDK
The best way to showcase our commitment is through the experiences and stories of those who have used our PDF Viewer.
See Real Success Stories
Developers around the world trust Syncfusion’s 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
Industry
Utilities (oil and gas)
450+ hours saved
Streamlined processes and hours of development effort saved.
Advanced, flexible features
Empowered users through robust and versatile functionality.
Industry
Software and technology
1000+ of hours saved
Accelerated development with enterprise-ready UI components.
Efficient file management
Streamlined workflows with document libraries without building them from scratch.
Industry
Software and technology
2 Years of delay avoided
Two years of delays prevented with proactive planning.
On-time delivery
Projects delivered on schedule using trusted controls.
Industry
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.
Industry
Professional services
Instant access
Quick availability of features and resources.
Reduced dependencies
Fewer dependencies for faster development.
Endless possibilities with one viewer
Whether building dashboards, managing legal documents, or delivering e-learning content, the ASP.NET Core PDF Viewer ensures smooth and interactive document handling. Join over 1M developers who rely on Syncfusion® for secure, enterprise-grade PDF rendering, annotation, and form filling. Discover why it consistently outperforms competing solutions in real-world performance benchmarks.
No credit card required.
ASP.NET Core PDF Viewer FAQs
If you’re new to the PDF Viewer or have questions, our FAQs will help you explore its features and capabilities.
Frequently Asked Questions
What is ASP.NET Core PDF Viewer?
The Syncfusion ASP.NET Core PDF Viewer enables developers to embed secure, high performance PDF viewing and interaction directly into ASP.NET Core applications. It is designed for enterprise and production environments where reliability, scalability, and control are essential.
Is ASP.NET Core PDF Viewer suitable for production and enterprise applications?
Yes. The ASP.NET Core PDF Viewer is built for real world production use, supporting large documents, predictable performance, secure document handling, and long term maintainability in enterprise environments.
How does the ASP.NET Core PDF Viewer compare to other PDF viewer solutions?
The ASP.NET Core PDF Viewer differs from basic or third party viewers by offering enterprise ready performance, security, extensibility, and long term support. It is designed for applications that require production grade document workflows rather than simple viewing.
Is the ASP.NET Core PDF Viewer secure and compliant?
Security is a core design principle. All PDF operations run within the application by default, and supports application level compliance requirements such as HIPAA, GDPR, and SOC 2 for handling sensitive documents.
What developer resources are available for the ASP.NET Core PDF Viewer?
Comprehensive documentation, code samples, API references, demos and community forums are available to help developers evaluate, integrate, and extend the ASP.NET Core PDF Viewer efficiently.
Does the ASP.NET Core PDF Viewer support PDF annotation?
Yes, the ASP.NET Core PDF Viewer includes rich PDF annotation tools such as highlight, underline, strikethrough, shapes, freehand drawing, and comments, enabling efficient document review and collaboration.
Does the ASP.NET Core PDF Viewer support form filling?
Yes, the ASP.NET Core PDF Viewer supports filling out interactive PDF forms (AcroForms). Users can enter data into text fields, checkboxes, radio buttons, and dropdowns directly within the viewer and save or submit the completed form.
Does the ASP.NET Core PDF Viewer support digital signatures?
Syncfusion ASP.NET Core PDF Viewer supports adding and displaying electronic signatures (drawn, typed, or image-based) as well as digital signatures (certificate-based) within PDF documents. However, advanced digital signature validation—such as verifying certificate authenticity and document integrity—typically requires server-side processing or the use of Syncfusion’s dedicated PDF libraries.
Is it possible to edit PDF content in the ASP.NET Core PDF Viewer?
The ASP.NET Core PDF Viewer supports limited editing capabilities such as annotations, text markup, and form field updates. Full content editing (like modifying existing text or images in the PDF) typically requires additional PDF processing tools or backend services.
Can I customize the toolbar for specific features like form filling or signatures?
Yes, the ASP.NET Core PDF Viewer allows you to customize the toolbar based on your application requirements. You can enable or disable features such as form filling, annotations, signatures, and download or print options. In addition, you can add custom toolbar buttons to implement your own functionality and further tailor the user experience.
Why should you choose Syncfusion Essential Studio ASP.NET Core PDF Viewer?
The Syncfusion ASP.NET Core PDF Viewer supports the following features:
- Accurate and reliable PDF rendering.
Easy document navigation and interaction.
Extensive collection of annotation tools includes text markup, shapes, measures, free text, stamps, and sticky notes.
AcroForm filling and editing.
- One of the best ASP.NET Core PDF viewers on the market that offers a feature-rich UI to interact with the software.
Simple configuration and API.
- Supports all modern browsers.
- Touch-friendly and responsive.
Expansive learning resources like demos and documentation help you learn quickly and get started fast.
Can I customize the ASP.NET Core PDF Viewer to match my application’s UI and workflows?
Yes. The ASP.NET Core PDF Viewer provides flexible APIs for customizing the viewer UI, toolbar, behavior, and interactions, allowing teams to align PDF workflows with application specific requirements and branding.
Can the ASP.NET Core PDF Viewer handle large and complex PDF documents?
Yes. The ASP.NET Core PDF Viewer is optimized for large and complex PDFs, using progressive loading and efficient rendering to maintain smooth interaction and stable performance in production environments.
Is the ASP.NET Core PDF Viewer compatible with other frameworks and platforms?
While optimized for ASP.NET Core, it follows consistent API patterns and is part of a broader ecosystem supporting multiple frameworks, enabling teams to maintain consistency across applications.
How do I get started with the Syncfusion ASP.NET Core PDF Viewer?
You can get started by reviewing the official documentation, exploring live samples, and following step by step integration guides to embed the PDF Viewer into your ASP.NET Core application.
Can I perform text search in PDF documents?
Yes, the ASP.NET Core PDF Viewer provides powerful text search in PDF capabilities, allowing users to quickly find and highlight specific words or phrases within large documents.
Can I design or create PDF forms in the ASP.NET Core PDF Viewer?
Yes, the ASP.NET Core PDF Viewer supports designing and creating PDF forms using its built-in form designer feature. You can add and customize form fields such as text boxes, checkboxes, and signature fields either programmatically or through the user interface. It also allows you to configure validation rules and set default values as needed.
Can users verify digital signatures in PDFs?
Syncfusion’s ecosystem supports validation of digital signatures and can indicate whether they are valid or modified. However, this functionality typically relies on the Syncfusion PDF Library (server-side or additional processing), and is not handled solely by the ASP.NET Core PDF Viewer component.
What design customization options are available in the ASP.NET Core PDF Viewer?
The ASP.NET Core PDF Viewer provides extensive design customization options including toolbar customization, theme support, layout adjustments, and integration with CSS frameworks. Developers can tailor the UI to match their application’s branding.
Does the viewer support saving filled forms or edited PDFs?
Yes, users can save PDFs with filled form data, annotations, and signatures applied. This can be done locally or sent to a server for storage or further processing.
Resources
Learn more about our ASP.NET Core PDF Viewer
Explore demos, KB articles, and documentation to get the most out of our PDF Viewer.
Explore guides, APIs, and quick-start tips
See live use cases in action
Ask, share, and connect with peers
Find solutions and best practices fast
Get expert help when you need it
Feature requests and bug reports
Track issues and suggest improvements
Trusted by the Industry, Recognized for Excellence
We don’t just say we’re great—independent awards and industry leaders back it up. We are honored to be recognized for our product innovation, customer support, and overall excellence by top organizations worldwide.
