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Spire.Office for .NET is a combination of Enterprise-Level Office .NET API offered by E-iceblue. It includes Spire.Doc, Spire.XLS, Spire.Spreadsheet, Spire.Presentation, Spire.PDF, Spire.DataExport, Spire.OfficeViewer, Spire.PDFViewer, Spire.DocViewer, Spire.Barcode and Spire.Email. Spire.Office contains the most up-to-date versions of the above .NET API.

With Spire.Office for .NET, developers can create a wide range of applications. It enables developers to open, create, modify, convert, print, View MS Word, Excel, PowerPoint and PDF documents. Furthermore, it allows users to export data to popular files such as MS Word/Excel/RTF/Access, PowerPoint, PDF, XPS, HTML, XML, Text, CSV, DBF, Clipboard, SYLK, PostScript, PCL, etc.

Spire.Office for .NET can be linked into any type of a 32-bit or 64-bit .NET application including ASP.NET, Web Services and WinForms for .NET Framework version 2.0 to 4.5. Spire.Office also supports to work on .NET Core, .NET 5.0, .NET 6.0, Microsoft Azure, Mono Android and Xamarin.iOS.

Here is a list of changes made in this release
Spire.PDF
CategoryIDDescription
New featureSPIREPDF-5977Supports converting multi-page PDF documents to single SVG files.
// load file
PdfDocument pdfDocument = new PdfDocument();
pdfDocument.LoadFromFile("input.pdf");
// convert multi-page PDF documents to a single SVG file 
pdfDocument.ConvertOptions.OutputToOneSvg = true;
// save file
pdfDocument.SaveToFile("outpit.svg",FileFormat.SVG);
pdfDocument.Close();
BugSPIREPDF-1786Fixes the issue that PDF documents had different numbers of pages but same sizes.
BugSPIREPDF-5782Fixes the issue that it failed to find text.
BugSPIREPDF-5783Fixes the issue that drawing text with rotation angle did not work.
BugSPIREPDF-5901Fixes the issue that the program threw exceptions when converting OFD to PDF.
SPIREPDF-5985 
BugSPIREPDF-5967Fixes the issue that spaces between words were lost after converting PDF to PowerPoint.
BugSPIREPDF-5992Fixes the issue that the content was inconsistent after converting PDF to PowerPoint.
BugSPIREPDF-6000Fixes the issue that some extracted contents were incorrect after extracting table contents.
BugSPIREPDF-6004Fixes the issue that the program threw "System.IndexOutOfRangeException" exception when using regular expressions to match text.
BugSPIREPDF-6006Fixes the issue that the cell formatting was incorrect after converting PDF to Excel.
BugSPIREPDF-5943Optimizes the time required to convert PDF to Word in Linux environment.
Spire.XLS
CategoryIDDescription
New featureSPIREXLS-4560Adds two methods to realize the movement of chartsheets and worksheets between positions.
workbook.Chartsheets[int index1].MoveSheet(int index2);
workbook.Chartsheets[int index1].MoveChartsheet(int index2)
New featureSPIREXLS-4684Adds the method to optimize the speed of deleting rows.
BugSPIREXLS-4587Fixes the issue that the pivot table fields were displayed as "Column Labels" after converting a sheet to images.
BugSPIREXLS-4605Fixes the issue that the chart data was not refreshed when converting an XLSX document to PDF.
BugSPIREXLS-4614Fixes the issue that the setting on top function does not take effect when adding a text box.
BugSPIREXLS-4643Fixes the issue that the table styles were incorrect when converting an XLSX document to PDF.
BugSPIREXLS-4644Fixes the issue that the application threw” Syste.OverflowException” when loading an XLS document.
BugSPIREXLS-4645Fixes the issue that the data format of retrieved cells was incorrect.
BugSPIREXLS-4646Fixes the issue that the application threw "System.FormatException” when adding HTML content.
BugSPIREXLS-4665Fixes the issue that the chartsheets could not be obtained after calling the MoveWorksheet method twice.
BugSPIREXLS-4666Fixes the issue that the text exceeds the cell after setting AutoFitColumns when the cell contains Chinese characters.
BugSPIREXLS-4673Fixes the issue that the background colors were inconsistent when converting an XLSX document to HTML.
BugSPIREXLS-4678Fixes the issue that the program reported an error "This structured storage version is not supported." when loading an XLS document.
BugSPIREXLS-4681Fixes the issue that the style of an added HTML strong tag was not recognized.
Spire.Presentation
CategoryIDDescription
New featureSPIREPPT-2232Supports setting the column count for the TextFrame.
Presentation ppt = new Presentation();
ppt.LoadFromFile(inputFile);
IAutoShape shape1 = (IAutoShape)ppt.Slides[0].Shapes[0];
shape1.TextFrame.ColumnCount = 2;
IAutoShape shape2 = (IAutoShape)ppt.Slides[1].Shapes[0];
shape2.TextFrame.ColumnCount = 3;
ppt.SaveToFile(outputFile, FileFormat.Pptx2013);
ppt.Dispose();
BugSPIREPPT-2205Fixes the issue that it prompted an error when editing the chart data of the saved PowerPoint file.
BugSPIREPPT-2221Fixes the issue that the switching Row/Column encountered an error when the chart data have some null values.
BugSPIREPPT-2215Fixes the issue that the application threw "Merged cells found." when splitting table merged cell.
SPIREPPT-2225 
BugSPIREPPT-2212Fixes the issue that the chart data was updated incorrectly.
SPIREPPT-2243 
BugSPIREPPT-2245Fixes the issue that the result was blurry after saving the GroupShape to image.
SPIREPPT-2274 
Spire.Doc
CategoryIDDescription
BugSPIREDOC-8643Fixes the issue that the application threw "System.InvalidCastException" when loading files.
BugSPIREDOC-8946Fixes the issue that content lost after converting Word to Html.
BugSPIREDOC-9217Fixes the issue that the application threw "System.InvalidOperationException" when loading files.
BugSPIREDOC-9288Fixes the issue that the application threw "System.ArgumentException" when merging Word documents.
BugSPIREDOC-9293Fixes the issue that text indentation was incorrect after converting Word to PDF.
BugSPIREDOC-9294Fixes the issue that the right margin of the document was incorrect after converting Word to PDF.
BugSPIREDOC-9295Fixes the issue that tables were not aligned after converting Word to PDF.
BugSPIREDOC-9377Fixes the issue that the content was garbled after converting Word to HTML.

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