Essential Studio® for Document Processing - v31.2.2 Release Notes

v31.2.2
October 15, 2025
Test Results: 238427 Success , 0 Failure

PDF Library

.NET PDF Library

Features

  • Upgraded the Blink binaries version from 133.0.6943.127 to 140.0.7339.207.

Bug Fixes

  • I759821 - Resolved the issue of incorrect text positioning during the conversion from EMF to PDF.
  • I771154 - Resolved the problem of missing characters in extracted text when the PDF utilizes ligatures.
  • I768537 - Resolved an issue where merging PDF files removed reused assets.

Word Library

.NET Word Library

Bug Fixes

  • I769076 - The NullReferenceException will no longer be thrown for Editable Ranges during opening of DOCX format document.
  • I767899 - Document with move revisions is now preserved properly after calling AcceptAll API.
  • I771779 - Tab is now applied properly to the text inside the table while converting a Word document to PDF.
  • I769744 - Underline is preserved properly while converting a Word document to PDF.
  • I770620 - Tab is now applied properly to the shape inside the table while converting a Word document to PDF.
  • I771781 - The bottom border of a paragraph inside a text box is now properly clipped during Word to PDF conversion.
  • I771783 - Pagination issues will no longer occur when converting a Word document with multiple columns and a continuous section break to PDF.

PowerPoint Library

.NET PowerPoint Library

Bug Fixes

  • I772674 - The NullReferenceException will no longer be thrown while converting the PPTX to PDF with invalid cropped image bounds.
  • I771585 - Black and white image with transparency will be preserved properly while resaving a PPTX document.

PDF Viewer

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

Bug Fixes

  • #I771576 - Resolved an issue where the comment author name changed on non-rendered pages after saving the PDF file.
  • #I771805 - Resolved an issue where script error occurred when loading the provided PDF document.

Blazor PDF Viewer

Bug Fixes

  • #I197480 -Corrected the Dutch localization for the ‘PdfViewer_Close’ key in the PDF Viewer.
  • #I754720 -Resolved issues where reply comments were hidden and comment selection did not navigate to readonly annotations in the Blazor PDF Viewer.
  • #I772426 -Resolved issue where screen reader read content in the PDF Viewer very slowly, improving accessibility performance.

Flutter PDF Viewer

General

  • Android compileSdkVersion is upgraded to API level 36

Features

  • I774972 - Improved document loading performance across all platforms, with speed increases of 39% on Windows, 35% on Android, 23% on Web platform, 19% on macOS, 34% on iOS and 45% on Linux.

DOCX Editor

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

Bug Fixes

#I757129 - Handle the behavior for ‘in-front of text’ Wrapping Style to Prevent Image Overlapping in Word Documents.
#I768465 - Fixed style not appear on the list of the styles.
#I758675 - Resolved custom font-size values not applying in ribbon mode.
#I753590 - Resolved the issue where list numbering was not continuous.
#I772656 - Resolved the script error that occurred when enableEditorHistory was disabled before deleting the bookmark.

Features

#I772656 - Provided an option to ignore uppercase letters in spell check.

Blazor DOCX Editor

Bug Fixes

#I757129 - Handle the behavior for ‘in-front of text’ Wrapping Style to Prevent Image Overlapping in Word Documents.
#I753590 - Resolved the issue where list numbering was not continuous.
#I772656 - Resolved the script error that occurred when enableEditorHistory was disabled before deleting the bookmark.

Features

#I772656 - Provided an option to ignore uppercase letters in spell check.

Spreadsheet Editor

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

Bug Fixes

  • #I764626 - Issue with “Alt+Enter not retaining focus in the formula bar during editing” has been resolved.
  • #I769414 - Issue with “image positions not adjusting properly when updating the row height programmatically after loading an Excel file with images” has been resolved.

Test Results

Component Name Platform Test Cases Remarks
Pdf Library (Pdf) .NET 14724 All Passed
Word Library(DocIO) .NET 56583 All Passed
Word Library(DocIO) Java 4079 All Passed
Excel Library(XlsIO) .NET 37778 All Passed
PowerPoint Library .NET 54391 All Passed
Metafilerenderer .NET 863 All Passed
SfPdfViewer2 Blazor 12906 All Passed
Pdf Viewer Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 19130 All Passed
SfPdfViewer MAUI 14684 All Passed
Pdf Viewer WPF 2998 All Passed
PdfViewer WinForms 207 All Passed
DOCX Editor(Document Editor) Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 5031 All Passed
DOCX Editor(Document Editor) Blazor 1936 All Passed
Spreadsheet Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 10407 All Passed
Spreadsheet WPF 2710 All Passed