Syncfusion Essential Studio PDF Viewer SDK（英語版）

Web、デスクトップ、モバイルプラットフォーム全体でPDFの表示、注釈、フォーム入力、署名が可能

Syncfusion 社の製品
2002 年より日本国内にてComponentSourceで販売中。

バージョン: 2026 Volume 1 (33.1.47) 新機能 更新日: Apr 7, 2026

Syncfusion Essential Studio PDF Viewer SDK（英語版） のスクリーンショット

Syncfusion Essential Studio PDF Viewer SDK 2025 Volume 3 SP2 (31.2.16)

Released: Dec 2, 2025

2025 Volume 3 SP2 (31.2.16) での更新項目

機能

  • Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
    • Provided support to enhance virtualized page rendering range in PDF Viewer on scroll stop.

不具合の修正

  • Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
    • Fixed an issue where the previousText value in the annotationPropertiesChange event was incorrect when updating annotation text from the Comments panel.
    • Resolved an issue where the signature was rendered twice in the same field after updating other form fields.
    • The PDF Viewer no longer throws OutOfMemoryException or ArgumentOutOfRangeException when loading the PDF multiple times.
    • The PDF Viewer no longer crashes with NullReferenceException when loading the specific PDF and loads PDFs containing editable text created in Edge.
  • WPF PDF Viewer
    • KeyNotFoundException will no longer be thrown while deleting form fields pages in a PDF document.
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