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Essential Studio® for Document Processing - v33.1.49 Release Notes

v33.1.49
April 14, 2026
Test Results: 234611 Success , 0 Failure

Word Library

.NET Word Library

Bug Fixes

  • I826938 - The ArgumentOutOfRangeException will no longer be thrown due to multiple continuous break while converting Word document to PDF.
  • I813095 - Numbered lists within fields are now preserved correctly during Word to PDF conversion.
  • I822948 - Watermark height is now preserved properly during DOCX to PDF conversion on the .NET Framework.
  • I823676 - Hyphenation enabled split text range width is now properly applied while converting a Word to PDF.
  • I818073 - Decimal tab with multiple paragraphs is now preserved properly while converting Word to PDF.
  • I822955 - SmartArt Arrow Pointer will be preserved properly during DOCX to PDF.
  • I825692 - Table within list is now indented properly after appending HTML content using AppendHTML API.
  • I823933 - Style formatting is now preserved correctly after appending HTML content using AppendHtML API.

Excel Library

.NET Excel Library

Bug Fixes

  • #I817164 - Pivot table EnableDrill default value being interpreted as false instead of true is now resolved.
  • #I814263 - Exception thrown while parsing cell style information in an XLSB document is now resolved.
  • #I824625 - Cross-sheet formula references are now retrieved properly when sorting.
  • #I824508 - Enhanced Excel-to-PDF performance by skipping zero-size shapes and unnecessary non-merged range processing.
  • Vertical secondary axis number format is now properly serialized while saving the document.

PDF Viewer

Web PDF Viewer (Javascript, Angular, React, Vue, ASP.NET Core & MVC)

Bug Fixes

  • #I825684 - Fixed an issue where the updateFormFieldsValue method did not update the Radio Button in the UI when the Form Designer module was not injected.
  • #I825682 - Fixed an issue where List Box options were not displayed correctly when the Form Designer module was not injected.
  • #I827597 - Fixed an issue where the findText method did not work for a customer-provided document.
  • #I812588 - Resolved an issue where the form field tab order did not work in rotated documents in server-rendering mode.

.NET MAUI PDF Viewer

Bug Fixes

  • #I821335 - Ink annotations now maintain correct scaling during zoom operations in Single Page mode in the MAUI PDF Viewer.

DOCX Editor

Web DOCX Editor (Javascript, Angular, React, Vue, ASP.NET Core & MVC)

Bug Fixes

#I823329 - An issue causing text to be inserted at incorrect positions when collaborator tabs were closed has been fixed.
#I823639 - Numbered lists no longer disappear after opening a document in Java.
#I824947 - The header and footer pane no longer gets stuck after realigning page numbers using the Backspace key.
#I817031 - Line-spacing mismatch that occurred after pressing Enter in a paragraph has been corrected.
#I824160 - Text distortion caused by shapes when adjusting table spacing has been addressed.
#I819950 - Cursor movement is now allowed outside the bookmark range after pressing Backspace.
#I818385 - An Editor crash caused by an infinite loop during the Select All action has been fixed.

Blazor DOCX Editor

Bug Fixes

#I807881 - Document loading delay in the WASM sample has been resolved.
#I823329 - An issue causing text to be inserted at incorrect positions when collaborator tabs were closed has been fixed.
#I823639 - Numbered lists no longer disappear after opening a document in Java.
#I824947 - The header and footer pane no longer gets stuck after realigning page numbers using the Backspace key.
#I817031 - Line-spacing mismatch that occurred after pressing Enter in a paragraph has been corrected.
#I824160 - Text distortion caused by shapes when adjusting table spacing has been addressed.
#I819950 - Cursor movement is now allowed outside the bookmark range after pressing Backspace.
#I818385 - An Editor crash caused by an infinite loop during the Select All action has been fixed.

Test Results

Component Name Platform Test Cases Passed Failed Remarks
Calculate Library .NET 145 145 0 All Passed
DOCX Editor Blazor 1985 1985 0 All Passed
DOCX Editor Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 5215 5215 0 All Passed
Excel Library .NET 37992 37992 0 All Passed
Metafile Renderer .NET 897 897 0 All Passed
PDF Library .NET 14035 14035 0 All Passed
PDF Viewer Blazor 16532 16532 0 All Passed
PDF Viewer .NET MAUI 15368 15368 0 All Passed
PDF Viewer Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 21897 21897 0 All Passed
PDF Viewer Windows Forms 209 209 0 All Passed
PDF Viewer WPF 3040 3040 0 All Passed
PowerPoint Library .NET 54547 54547 0 All Passed
Spreadsheet Blazor 4130 4130 0 All Passed
Spreadsheet Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 10806 10806 0 All Passed
Spreadsheet WPF 2716 2716 0 All Passed
Word Library .NET 41018 41018 0 All Passed
Word Library Java 4079 4079 0 All Passed