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PDF4DEV Solutions (previously O2 Solutions) offers .NET components for PDF manipulation and rendering, designed to integrate into .NET environments. Its flagship products, PDF4NET and PDFView4NET, make building robust PDF solutions simple. PDF4NET improves PDF creation and editing with an intuitive object model, eliminating the need for Adobe tools. PDFView4NET enables viewing, annotating, and printing PDFs, supporting Windows Forms and WPF with features like bookmark navigation and file attachments.
PDF4DEV Solutions adds full support for .NET 10, enabling software developers to leverage the latest performance, security, and tooling improvements within the modern .NET ecosystem. This update ensures reliable compatibility across platforms, improves integration with current development processes, and supports the use of new C# language features for more efficient and maintainable code. Developers benefit from smoother application upgrades, improved runtime stability, and a future-ready foundation that aligns with evolving industry standards for .NET-based PDF processing.
Support for .NET 10 is available across the PDF4DEV Solutions .NET product range:
PDF4DEV Solutions products are licensed per developer and include a 12 month subscription which provides all major and minor product updates and technical support. See our PDFBundle4NET licensing page for full details.

Infragistics Ultimate is a comprehensive toolkit designed to improve UX/UI creation and development across desktop, web, and mobile platforms. It offers hundreds of pre-built, high-performance UI components like grids and charts, alongside design-to-code tools for rapid prototyping, user testing, and even code generation. This enables developers and designers to create visually appealing and interactive applications faster, while its support for various frameworks and platforms ensures flexibility.
Infragistics Ultimate UI for Windows Forms, Ultimate UI for WPF, and Ignite UI for Blazor now support .NET 10. With runtime improvements, such as better just-in-time inlining, enhanced struct argument handling, NativeAOT enhancements, and updates to collections, serialization, and diagnostics APIs, Infragistics' .NET 10 support ensures you can fully leverage these performance, security, and API benefits while using its mature UI libraries.
Infragistics Ultimate UI for Windows Forms, Ultimate UI for WPF and Ignite UI for Blazor are licensed per developer and are available as a Perpetual License with 1, 2 or 3 year support and maintenance subscription. See our Infragistics Ultimate UI for Windows Forms, Ultimate UI for WPF and Ignite UI licensing pages for full details.
For more information please visit our product pages:
Infragistics Windows Forms, WPF and Ignite UI are also available in the following product suites:

Telerik UI for WPF and Telerik UI for WinForms are commercial UI suites that help developers build modern, visually appealing and highly functional Windows applications. Telerik UI for WinForms provides more than 160 robust controls with a well designed architecture and CAB support, making it ideal for enterprise line of business, data intensive and internal desktop apps that demand reliability and rapid development. Telerik UI for WPF is tailored for Windows Presentation Foundation and offers high performance, visually rich and highly customizable controls for advanced line of business scenarios. By using these toolsets, teams can deliver engaging user experiences while reducing time to market and long term maintenance effort.
The Telerik 2025 Q4 update for WPF and WinForms introduces AI powered PDF querying and summarization. By allowing users to ask direct questions about PDF content and receive concise, context aware answers, the enhanced PDF Viewer reduces the time spent navigating long contracts, reports and technical documentation. This capability improves information retrieval and adds meaningful value to document heavy applications by enabling faster access to the specific details users need without manual searching or scrolling.
To see a full list of what's new for each product in 2025 Q4, see our Telerik UI for WPF and Telerik UI for WinForms release notes.
Both Telerik UI for WPF and Telerik UI for WinForms are licensed per developer and have two licensing models: an annual Subscription License and a Perpetual License. The Subscription license provides access to the latest product updates, technical support, and exclusive benefits for a flat annual fee, and must be renewed to continue using the software. The Perpetual license is a one-time purchase granting access to the current released version and includes a one-year subscription for product updates and technical support. After this initial period, users can choose to renew the subscription element to continue receiving updates and support; otherwise, they may continue using the installed version available during their active subscription term but will forgo future updates and support. See our Telerik UI for WPF licensing page and Telerik UI for WinForms licensing page for full details.
Telerik UI for WPF and Telerik UI for WinForms are available individually or as part of the following products:

Telerik Reporting is a comprehensive and lightweight embedded reporting tool for .NET web and desktop applications. It enables developers and reporting users to create, design, and export visually appealing, interactive, and reusable reports to effectively present analytical and business data. It supports various technologies, including ASP.NET Core, Blazor, ASP.NET MVC, ASP.NET AJAX, HTML5/JS, Angular, WPF, WinForms, and WinUI.
The Telerik Reporting 2025 Q4 update introduces customizable report templates in the Web Report Designer, giving developers a faster and more controlled way to produce consistent, production-ready reports. By allowing teams to define, save and reuse templates that include predefined layout structures, styling rules and data components, the feature reduces repetitive setup work, maintains uniform design standards across projects and ensures every new report begins with a reliable, compliant foundation.
To see a full list of what's new in 2025 Q4 (19.3.25.1111), see our release notes.
Telerik Reporting is licensed per developer and is available as a perpetual license with a one year support subscription, which is offered in three tiers: Lite, Priority or Ultimate. See our Telerik Reporting licensing page for full details.
Telerik Reporting is available to buy in the following products:

A trackbar in data editors provides a sliding control that allows users to adjust numeric values within a defined range through an interactive visual interface. It reduces the need for manual text entry, prevents invalid inputs by enforcing minimums, maximums and step increments, and offers immediate feedback as values change. Trackbars are especially useful in scenarios where users need to fine tune settings such as selecting volume levels, adjusting brightness, setting filter thresholds or choosing time or price ranges, making them ideal for applications that benefit from quick, intuitive and precise value selection.
Several .NET WinForms components offer Trackbar Data Editors including:
For an in-depth analysis of features and price, visit our comparison of .NET WinForms Data Editors.