Essential Studio® for Document Processing - v33.1.46 Release Notes

v33.1.46

March 31, 2026

Test Results: 234348 Success , 0 Failure

• All
• Features
• Bug Fixes
• Breaking Changes

PDF Viewer

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

Bug Fixes

• I821668 - Fixed an issue where the browser default print dialog appeared even when enablePrint was set to false while the PDF Viewer was in focus.
• I819221 - Resolved an exception that occurred when printing a PDF in Microsoft Edge with the AlwaysOpenPdfExternally policy enabled.
• I821467 - Fixed an issue where Free Text annotation bounds were incorrectly exported after updating bounds using the editAnnotation method.
• I821182 - Resolved an issue where the findText method returned incorrect bound values for PDF documents that contain CropBox and MediaBox values.
• I822227 - Fixed an issue where annotations were not rendered in Standalone rendering mode for the customer provided PDF document.

WPF PDF Viewer

Bug Fixes

• I821109 - InvalidCastException will no longer be thrown while clicking Custom stamp menu.
• I812125 - Incorrect page deletion will no longer occur in Organize page.
• I692348 - Improved memory optimization while adding and removing annotation programmatically.

DOCX Editor

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

Bug Fixes

#I818359 - Fixed an issue where underline formatting was not removed when choosing Ignore Once.
#I804008 - Resolved text overlapping issues when using both machine fonts and the custom font API.
#I810045 - Fixed an issue where the font size dropdown did not allow setting half-point values.
#I816757 - Fixed an issue where automatic hyperlink conversion failed for long links.
#I820417 - Resolved an issue where pasting text added an unwanted closing HTML tag.
#I814760 - Fixed multiple issues related to spell check.
#I818705 - Fixed a script error that occurred when copying the entire document content using Ctrl + A and Ctrl + C.
#I817043 - Fixed an issue where deleting text caused content to shift to an extra page.
#I819206 - Fixed an issue where drag-and-drop incorrectly allowed content to be moved into non-editable regions.
#I819095 - Resolved a browser freezing issue that occurred when continuously pasting content with spell check enabled.
#I810021 - Fixed an issue where page numbers were displayed incorrectly for partially numbered sections.
#I814014 - Fixed an issue where the date picker was unresponsive when selecting Today.
#I800589 - Resolved an issue where table positioning shifted when toggling between layouts.
#I815790 - Fixed an issue where the ribbon remained active when the document was read-only.
#I806986 - Improved usability when resizing by fixing issues with grabbing borders.
#I800985 - Fixed table formatting misalignment that occurred after saving and reopening the document.
#I795470 - Fixed an issue where English text was not appended correctly after Arabic input.
#F72948 - Fixed an issue where line spacing values were not retained after being set.
#I806994 - Fixed an issue where empty comments were added for other users in Web Layout mode during collaborative editing.
#I818405 - Fixed an issue where the Form Field pop-up appeared during multiple selection.
#I805914 - Fixed an auto-save script error that occurred during initialization.

Blazor DOCX Editor

Bug Fixes

#I820121 - Resolved an issue with the Undo button in Form Fields.
#I803156 - Fixed an issue where invalid input was permitted in specialized date and number Form Fields.
#I800889 - Fixed an issue where the Track Changes pane remained visible when revisions were hidden.
#I818359 - Fixed an issue where underline formatting was not removed when choosing Ignore Once.
#I804008 - Resolved text overlapping issues when using both machine fonts and the custom font API.
#I810045 - Fixed an issue where the font size dropdown did not allow setting half-point values.
#I816757 - Fixed an issue where automatic hyperlink conversion failed for long links.
#I820417 - Resolved an issue where pasting text added an unwanted closing HTML tag.
#I814760 - Fixed multiple issues related to spell check.
#I818705 - Fixed a script error that occurred when copying the entire document content using Ctrl + A and Ctrl + C.
#I817043 - Fixed an issue where deleting text caused content to shift to an extra page.
#I819206 - Fixed an issue where drag-and-drop incorrectly allowed content to be moved into non-editable regions.
#I819095 - Resolved a browser freezing issue that occurred when continuously pasting content with spell check enabled.
#I810021 - Fixed an issue where page numbers were displayed incorrectly for partially numbered sections.
#I814014 - Fixed an issue where the date picker was unresponsive when selecting Today.
#I800589 - Resolved an issue where table positioning shifted when toggling between layouts.
#I815790 - Fixed an issue where the ribbon remained active when the document was read-only.
#I806986 - Improved usability when resizing by fixing issues with grabbing borders.
#I800985 - Fixed table formatting misalignment that occurred after saving and reopening the document.
#I795470 - Fixed an issue where English text was not appended correctly after Arabic input.
#F72948 - Fixed an issue where line spacing values were not retained after being set.
#I818405 - Fixed an issue where the Form Field pop-up appeared during multiple selection.
#I805914 - Fixed an auto-save script error that occurred during initialization.

WPF DOCX Editor

Bug Fixes

• I819816 - The ArgumentOutOfRangeException is no longer thrown when loading documents containing ZWJ‑based inlines.

UWP DOCX Editor

Bug Fixes

• I819816 - The ArgumentOutOfRangeException is no longer thrown when loading documents containing ZWJ‑based inlines.

Spreadsheet Editor

Blazor Spreadsheet Editor

Bug Fixes

• #F198204 - Fixed an exception that occurred when loading a corrupted or unsupported Excel file in the spreadsheet.

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)	5183	5183	0	All Passed
Excel Library	.NET	37992	37992	0	All Passed
Metafile Renderer	.NET	897	897	0	All Passed
PDF Library	.NET	14005	14005	0	All Passed
PDF Viewer	.NET MAUI	15368	15368	0	All Passed
PDF Viewer	Blazor	16523	16523	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	54541	54541	0	All Passed
Spreadsheet	Blazor	3970	3970	0	All Passed
Spreadsheet	Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC)	10803	10803	0	All Passed
Spreadsheet	WPF	2715	2715	0	All Passed
Word Library	.NET	40996	40996	0	All Passed
Word Library	Java	4079	4079	0	All Passed