Essential Studio® for Document Processing - v34.2.6 Release Notes

v34.2.6
September 01, 2026
Test Results: 238029 Success , 0 Failure

PDF Library

.NET PDF Library

Bug Fixes

  • #I866189 - Resolved an issue where an ArgumentOutOfRangeException was thrown when loading a document page.
  • #I861801 - Resolved an issue where Find returned unmatched results for a specific PDF document.

JavaScript PDF Library

Bug Fixes

  • #I865431 - Resolved an issue where a scripting error occurred while accessing bookmarks in a specific PDF document.
  • #I866578 - Resolved an issue where the destination location of a document link annotation was incorrectly retrieved.

Features

  • I865427 - Added support for border effects in circle, ellipse, and free text annotations, ensuring accurate rendering, preservation of annotation styles, and improved PDF compatibility.

Word Library

.NET Word Library

Bug Fixes

  • I857454 - Content controls with Track Changes are now serialized properly when resaving a DOCX document.
  • I863464 - Arabic font is now applied properly during RTF to DOCX conversion.
  • F198523 - Autofit table grid columns are now recalculated properly while converting a Word document to PDF.
  • I866234 - Pagination issues will no longer occur due to text height mismatches during DOCX to PDF conversion with font substitution in Linux environment.
  • I864205 - Pagination issues will no longer occur due to page breaks during DOCX to PDF conversion.
  • I864517 - Text overlapping issues in tables will no longer occur due to an incorrect intersect index during DOCX to PDF conversion.
  • I867079 - List numbering with control characters is now preserved properly during DOCX to PDF conversion.

PDF Viewer

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

Bug Fixes

  • #I866090 - Resolved an issue where the saved signature did not appear in the signature toolbar after the signature was cleared from the canvas.

DOCX Editor

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

Bug Fixes

#I857112 - Fixed an issue where paragraph borders were rendered incorrectly, causing text to overlap in the document.
#I861033 - Fixed an issue where the Document Editor became unresponsive when resizing a table column.
#I864175 - Fixed an issue where the document layout changed after modifying header table border properties.
#I857044 - Fixed an issue where heading style changes were not retained when using the applyStyle() API.
#I866483 - Fixed a script error that occurred in Java when importing a document.
#I865409 - Fixed an issue where extra spacing appeared between headings in the document.

Spreadsheet Editor

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

Bug Fixes

  • #I859021 - Issue with “image position not maintained properly during Excel file import in freeze-pane sheets” has been resolved.
  • #I859021 - Issue with “wrapped content not being aligned properly when the vertical alignment is set to middle” has been resolved.
  • #I864992 - Issue with “nested ISNUMBER formulas used in conjunction with AND, OR, and NOT formulas returning a #VALUE! error” has been resolved.
  • #I865273 - Issue with “spreadsheet becoming unresponsive when pasting large external Excel datasets during Ctrl+V operations” has been resolved.

Test Results

Component Name Platform Test Cases Passed Failed Remarks
Calculate Library .NET 145 145 0 All Passed
DOCX Editor Blazor 2005 2005 0 All Passed
DOCX Editor Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 5303 5303 0 All Passed
Excel Library .NET 38019 38019 0 All Passed
Metafile Renderer .NET 956 956 0 All Passed
PDF Library .NET 14219 14219 0 All Passed
PDF Viewer Windows Forms 209 209 0 All Passed
PDF Viewer .NET MAUI 15368 15368 0 All Passed
PDF Viewer Blazor 16973 16973 0 All Passed
PDF Viewer Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 21897 21897 0 All Passed
PDF Viewer WPF 3040 3040 0 All Passed
PowerPoint Library .NET 54557 54557 0 All Passed
Spreadsheet Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 10973 10973 0 All Passed
Spreadsheet Blazor 5773 5773 0 All Passed
Spreadsheet WPF 2723 2723 0 All Passed
Word Library .NET 41790 41790 0 All Passed
Word Library Java 4079 4079 0 All Passed