Spire.Doc 7.12.21 supports chaning the checkbox state symbol

We're pleased to annouce the release of Spire.Doc 7.12.21. This version supports changing the symbol of the checkbox state, supports inserting gutter in Word documents, and enhances the conversion from Word to PDF. More details are as follows.

New Features:

• Supports changing the checkbox state symbol.

sdtCheckBox.CheckedStateFontName = "Calibri";
sdtCheckBox.CheckedStateCharacterCode = 8730;
sdtCheckBox.UnCheckedStateFontName = "Calibri";
sdtCheckBox.UnCheckedStateCharacterCode = 9675;

• Supports inserting gutter.

section.PageSetup.Gutter = 100f;

Bug Fixes:

• Fixes the issue that the content was missing after converting Word to PDF/A-1a.
• Fixes the issue that the layout of result PDF was incorrect after converting Word to PDF.
• Fixes the issue that application threw the ArgumentOutOfRangeException when saving to PDF after replacing text.
• Fixes the issue that the font in result file was showed incorrectly in LibreOffice after converting to ODT file.
• Optimizes the Garbage disposal.
• Fixes the issue that the application threw KeyNotFoundException when saving file.
• Fixes the issue that the text was overlapped after converting Word to PDF.
• Fixes the issue that the direction of Arabic text changed after converting Word to PDF.
• Fixes the issue that the application threw the ArgumentOutOfRangeException when converting HTML to Word.
• Optimizes the speed of converting a Word file to PDF.
• Fixes the issue that the application threw NullReferenceException when loading a Word file.
• Fixes the issue that the tag was lost after converting Word to HTML.
• Fixes the issue that the application threw IndexOutOfRangeException when converting a Word file to PDF stream.
• Fixes the issue that the application threw NotSupportedException when replacing bookmark content.
• Fixes the issue that the content was lost after converting Word to PDF.
• Fixes the issue that the application threw NullReferenceException when converting Word to PDF.