Syncfusion Essential Studio PDF Viewer SDK

Enable PDF viewing, annotation, form filling, and signing across web, desktop, and mobile platforms.

Published by Syncfusion
Distributed by ComponentSource since 2002

Version: 2026 Volume 1 SP1 (33.2.8) NEW Updated: May 26, 2026

Screenshot of Syncfusion Essential Studio PDF Viewer SDK

Syncfusion Essential Studio PDF Viewer SDK 2026 Volume 1 (33.1.47)

Released: Apr 7, 2026

Updates in 2026 Volume 1 (33.1.47)

Fixes

  • Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
    • Fixed an issue where the List Box font color was not retained in the print preview and the downloaded PDF documents.
    • The findTextAsync method now works in server side rendering mode before the extractTextCompleted event is triggered.
    • Fixed an issue where changes to handwritten signature opacity were not applied correctly when adjusting opacity and interacting with the PDF page.
    • Resolved a script error that occurred while redacting the customer provided document.
  • Blazor PDF Viewer
    • Implemented support to display bookmark styling attributes, including font color and font style, only during rendering in the PDF Viewer.
    • Resolved the newline handling issue encountered when editing FreeText annotations programmatically in the PDF Viewer document loaded event.
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