.NETのニュース

PDFレポートに明確な署名を追加

11月 28, 2025
PDFにブランド入りのページ内署名パネルを挿入することで、信頼性を伝え、信頼を強化し、すべての報告書のプロフェッショナリズムが向上

PDF visual signatures allow you to embed a clear, on-page representation of a digital signature directly into your exported reports, combining the security of a certified digital signature with the clarity of a visibly signed document. This feature instantly communicates authenticity and approval, helping recipients quickly verify who signed the report without navigating hidden metadata. It enhances professionalism with styled signature blocks that can include names, titles, dates, or branding elements, reinforcing trust and consistency across all distributed documents. Common use cases include signed invoices, compliance reports, approval forms, contracts, certificates, and any document that requires both a secure digital signature and a visually identifiable sign-off for clarity and reassurance.

Several .NET Reporting controls offer PDF visual signature support including:

  • DevExpress Reporting lets you embed secure visual signatures into PDFs, providing clear on-page approval, enhanced professionalism, and document verification.
  • ActiveReports.NET Standard allows you to generate PDFs with visible digital signatures, giving recipients clarity, authenticated output, and confidence in every finalized report.
  • TX Text Control .NET Server for ASP.NET allows you to insert visual PDF signatures with precise positioning, image stamps and metadata.
  • FastReport .NET WinForms lets you incorporate visually represented signatures into PDF exports, delivering verification, improved readability, and identifiable sign-off information.

For an in-depth analysis of features and price, visit our .NET Reporting controls comparison.

Compare .NET Reporting Components

スプレッドシートのデータ可読性が向上

11月 28, 2025
フォーマットやプレゼンテーション機能を使うことで、複雑なワークシートを手間なく操作できるように情報を簡単に提示可能

Formatting and presentation features shape how information is communicated within a spreadsheet, turning raw values into content that is clearer, more readable, and visually consistent. These capabilities help users emphasize key data, establish a coherent visual style, and create worksheets that are easier to interpret at a glance. By supporting both subtle adjustments and more expressive enhancements, they play a central role in making spreadsheets suitable for reporting, analysis, and presentation-focused tasks across a wide range of scenarios.

Common features include:

  • Barcodes convert cell values into machine-readable symbols that can be used for tracking, inventory, or integration with external systems.
  • Cell Formatting controls the appearance of content through adjustments to fonts, colors, borders, alignment, and number formats.
  • Charts present data visually through a variety of graphical formats, making patterns and comparisons easier to understand.
  • Conditional Formatting applies visual cues dynamically, helping users identify trends, exceptions, or threshold-based results without manual intervention.
  • Inserting Images enables users to place graphics directly into worksheets, supporting richer presentations and adding contextual detail where needed.
  • Themes provide a foundation for consistent styling by applying coordinated colors, fonts, and effects across an entire spreadsheet.

For an in-depth analysis of features and price, visit our ASP.NET Core spreadsheet components comparison.

Explore ASP.NET Core Spreadsheet Features

スライディングコントロール付きの微調整値入力

11月 27, 2025
数値入力を改善し、有効な範囲を維持し、視覚的なフィードバックを提供する直感的なトラックバーデータエディターをユーザーに提供

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.

Compare .NET WinForms Data Editors

WPFを使用したExcel XLSXファイルをインポート/エクスポート

11月 27, 2025
Spread.NET を使って、WPFアプリケーション内でExcelのスプレッドシートを簡単にインポート/エクスポート可能

Spread.NET helps you create spreadsheets, grids, dashboards, and forms. It includes a powerful calculation engine with 450+ functions and the ability to import and export Excel spreadsheets. You can develop in Visual Studio using VB or C# for WinForms, ASP.NET, and WPF.

In this blog post, MESCIUS Product Marketing Specialist Mackenzie Albitz guides you through four essential steps for importing and exporting Excel spreadsheets in your WPF applications:

  • Create a C#/VB WPF Spreadsheet Application
  • Define the User Interface for a WPF Spreadsheet App
  • Add Excel XLSX Import Code - OpenExcel Method
  • Add Excel XLSX Export Code - SaveAs Method

Detailed sample code is included and you can even download a finished sample project to follow along.

Read the complete blog post to learn the steps for integrating this powerful Excel functionality into your WPF applications.

Spread.NET is licensed per developer and is available as a Perpetual License with a 12 month support and maintenance subscription. We can supply any Spread.NET license including new licenses, maintenance renewals, and upgrade licenses. See our Spread.NET licensing page for full details.

For more information, visit our Spread.NET product page.

WebアプリでPDFに手書きのメモを追加

11月 26, 2025
ASP.NET Core PDFコントロールはフリーハンド描画とインク注釈付きで、署名、スケッチ、メモを直接文書に追加可能

Freehand Draw, also known as Ink Annotation, in ASP.NET Core PDF Viewer controls allows users to add freeform, hand-drawn annotations directly onto PDF documents. This feature mimics natural handwriting or sketching by enabling input through mouse, touch, or stylus, making it especially useful for scenarios requiring personal notes, signatures, or diagrammatic feedback. The annotations are embedded as part of the PDF, ensuring they remain accessible and visible across different platforms and viewers. It is commonly used in applications where document review or digital signing is required, enhancing interactivity and collaboration within PDF-based processes.

Several ASP.NET Core Assembly PDF Viewer components offer support for Freehand Draw/Ink Annotation including:

  • Document Solutions for PDF by MESCIUS allows you to draw free‑hand ink annotations that capture user‑stroke paths and embed them as editable vector markup within a PDF.
  • ImageGear .NET by Accusoft enables freehand and polyline annotation so developers can capture scribbles, arrows or curves and save them as PDF annotation objects.
  • Syncfusion ASP.NET Core PDF (part of Syncfusion Essential Studio Enterprise) supports ink annotation within its viewer, enabling users to draw and add signatures to PDFs.

For an in-depth analysis of features and price, visit our comparison of ASP.NET Core Assembly PDF Viewer Components.

Compare ASP.NET Core Assembly PDF Viewer Components