Syncfusion Essential Studio PDF Viewer SDK Releases
Released: Apr 28, 2026
Updates in 2026 Volume 1 SP1 (33.2.4)
Fixes
- Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
- Resolved an issue where the showToolbarItem method did not work for custom toolbar items.
- Fixed an issue where the area annotation label was not displayed after exporting and importing a document in the PDF Viewer.
- Fixed an issue where the findText method did not work properly with a customer provided document.
- Fixed an exception that occurred while downloading a document containing a straight line ink annotation...
Released: Apr 14, 2026
Updates in 2026 Volume 1 (33.1.49)
Fixes
- Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core and MVC)
- Fixed an issue where the updateFormFieldsValue method did not update the Radio Button in the UI when the Form Designer module was not injected.
- Fixed an issue where List Box options were not displayed correctly when the Form Designer module was not injected.
- Fixed an issue where the findText method did not work for a customer-provided document.
- Resolved an issue where the form field tab order did not work in rotated...
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...
Released: Mar 31, 2026
Updates in 2026 Volume 1 (33.1.46)
Fixes
- Web PDF Viewer (Javascript, Angular, React, Vue, ASP.NET Core & MVC)
- Fixed an issue where the browser default print dialog appeared even when enablePrint was set to false while the PDF Viewer was in focus.
- Resolved an exception that occurred when printing a PDF in Microsoft Edge with the AlwaysOpenPdfExternally policy enabled.
- Fixed an issue where Free Text annotation bounds were incorrectly exported after updating bounds using the editAnnotation method.
- Resolved an issue where the...
Released: Mar 24, 2026
Updates in 2026 Volume 1 (33.1.45)
Fixes
- Blazor PDF Viewer
- Resolved an issue where localization was incorrectly updated when using the IsThumbnailPanelOpen API to open the thumbnail panel.
- Resolved an issue where the mouse cursor was incorrectly updated when attempting to add a custom stamp in Blazor WebAssembly.
- Resolved an issue where the mouse cursor was incorrectly updated when attempting to add a custom stamp in a custom toolbar in Blazor WebAssembly.
- Resolved an exception that occurred during multiple refresh operations in...
Released: Mar 16, 2026
Updates in 2026 Volume 1 (33.1.44)
Features
- Common
- Production-ready component - The Blazor Smart PDF Viewer components have been enhanced to meet industry standards and are production-ready.
- Document summarizer: Provides AI-generated summaries and answers to user queries, enabling quick understanding of document content.
- Smart redaction: Automatically detects and redacts sensitive information automatically, ensuring accurate and secure content protection.
- Smart fill: Automatically identifies and fills PDF form fields using AI...
Released: Mar 10, 2026
Updates in 2025 Volume 4 SP1 (32.2.9)
Fixes
- Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
- Fixed an issue where grouped radio buttons did not update their selected state correctly during interaction.
- Resolved a script error that occurred when annotation comments were edited programmatically after the annotation was locked.
- Fixed an issue where the Angular Material Dialog was not properly disposed after closing when the PDF Viewer was used inside it.
- Resolved an issue where exportAsImages returned empty or...
Released: Mar 3, 2026
Updates in 2025 Volume 4 SP1 (32.2.8)
Fixes
- Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
- Fixed an issue where textboxes did not receive focus in touch mode when a custom class and tooltip were used.
- Fixed accessibility issues in the EJ2 PDF Viewer.
- Fixed an issue where the viewer failed to load a new document after opening a corrupted PDF document.
- .NET MAUI PDF Viewer
- Annotation selection now works consistently at FitToPage zoom mode and low zoom levels on the android platform.
- FormFieldValueChanged...
Released: Feb 24, 2026
Updates in 2025 Volume 4 SP1 (32.2.7)
Fixes
- Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
- Fixed a script error that occurred on mobile devices when dynamically updating the component height with enableToolbar set to false.
- Resolved an issue where the Add Reply option appeared twice in the Comment Panel when isCommentLock was set to true.
- Fixed an issue where importing annotations failed when using older format JSON data for sticky note annotations.
- .NET MAUI PDF Viewer
- Link annotations now navigate to the...
Released: Feb 17, 2026
Updates in 2025 Volume 4 SP1 (32.2.5)
Fixes
- Web PDF Viewer (JavaScript, Angular, React, Vue, ASP.NET Core & MVC)
- Resolved an issue where the free text annotation was not rendering similar to Adobe PDF Viewer.
- Resolved an issue where opacity was not applied properly for free text when setting through the freeTextSettings API in edit mode.
- Resolved an issue where the free text annotation position changed in the downloaded PDF when opened in other viewers.
- Resolved an issue where the free text annotation height increased when...
