Essential Studio® for Document Processing - v31.2.4 Release Notes

v31.2.4
October 28, 2025
Test Results: 222966 Success , 0 Failure

PDF Library

.NET PDF Library

Bug Fixes

  • I758536 - Resolved an issue related to the preservation of the Osmanya script.
  • I758630 - Resolved the issue of preservation during PDF/A conformance conversion with the subset option.
  • I768989 - Resolved the issue of incorrect word splitting occurring during text extraction from a specific PDF document.
  • I768968 - Resolved the issue of document corruption that occurred while redacting a PDF document.
  • I769339 - Resolved the issue where reply comments and comment statuses were missing when importing annotations.
  • I748930 - Resolved the issue where checkbox values were incorrect after saving the document.
  • FB70411 - Resolved an issue with color loss (turning completely black) during image extraction and rendering in WinForms.
  • I773121 - Resolved an issue with the PDF compression operation taking an extended amount of time for a particular PDF file.
  • I776165 - Resolved an issue with an index out of range exception occurring while compressing a PDF with certain fonts.
  • I766843 - Resolved the issue where signature validation failed despite using a timestamp server.

Word Library

.NET Word Library

Bug Fixes

  • I770989 - The ArgumentOutOfRangeException will no longer be thrown while converting a Word document with table to Image.
  • I775381 - Enhanced DOCX Comparison Performance in the Compare API.
  • I774840 - Revisions are now preserved properly while comparing DOCX documents with bookmarks.
  • I774937 - Table is now preserved properly while converting a Word with textbox inside the footer to PDF.

Excel Library

.NET Excel Library

Bug Fixes

  • #I758045 - Formula ranges now update correctly when sorting data.
  • #I777003 - No exception is thrown when calling AddCopy on a worksheet when data validation formulas across the workbook share the same name.
  • #I772873 - No exception is thrown when opening an XLS file that contains header or footer images.
  • #I776140 - System font retrieval now returns the exact font name when using the FontSubstitution event.
  • #I776093 - The maximum value for the value axis in 3D charts is now applied correctly during PDF export.

PowerPoint Library

.NET PowerPoint Library

Bug Fixes

  • I774968 - The ArgumentOutOfRangeException will no longer be thrown while converting PPTX to PDF with invalid table cell structure.

PDF Viewer

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

Bug Fixes

  • #I776985 - Resolved an issue where script error occurred when findTextAsync was performed with the provided text in the document.

DOCX Editor

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

Bug Fixes

  • #I761423 - AutoFocus behavior updated when enableAutoFocus is set to false.
  • #I772600 - Resolved performance issue when inserting text with a large number of DOM elements.
  • #I774527 - Toggling paragraph marks now correctly maintains bookmark visibility.
  • #I773462 - Fixed a null reference exception that occurred on the server when downloading a document containing a chart.
  • #I772069 - Resolved endless selection issue when applying a toolbar tool to a text selection.
  • #I771551 - Font-family now updates correctly for list text, addressing incorrect cursor positioning related to paragraph before spacing.
  • #I763642 - Fixed layout issues caused by split paragraphs across pages.

Blazor DOCX Editor

Bug Fixes

  • #I761423 - AutoFocus behavior updated when enableAutoFocus is set to false.
  • #I774527 - Toggling paragraph marks now correctly maintains bookmark visibility.
  • #I773462 - Fixed a null reference exception that occurred on the server when downloading a document containing a chart.
  • #I772069 - Resolved endless selection issue when applying a toolbar tool to a text selection.
  • #I771551 - Font-family now updates correctly for list text, addressing incorrect cursor positioning related to paragraph before spacing.
  • #I763642 - Fixed layout issues caused by split paragraphs across pages.

Test Results

Component Name Test Cases Passed Failed Remarks
DOCX Editor(Document Editor) 1943 1943 0 All Passed
DOCX Editor(Document Editor) 5023 5023 0 All Passed
Excel Library(XlsIO) 37735 37735 0 All Passed
Metafilerenderer 863 863 0 All Passed
Pdf Library(Pdf) 13898 13898 0 All Passed
Pdf Viewer 19130 19130 0 All Passed
PdfViewer 2998 2998 0 All Passed
PdfViewer 207 207 0 All Passed
PowerPoint Library 54392 54392 0 All Passed
SfPdfViewer 14684 14684 0 All Passed
SfPdfViewer2 13104 13104 0 All Passed
SfSpreadsheet 2696 2696 0 All Passed
Spreadsheet 1917 1917 0 All Passed
Spreadsheet 10411 10411 0 All Passed
Word Library(DocIO) 39886 39886 0 All Passed
Word Library(DocIO) 4079 4079 0 All Passed