Release Notes

2023.11.22 - November 22nd, 2023

We are very excited to announce the official release of our new Excel to PDF .Net 2023.11!
Let's see what's new:

We have improved the algorithm for converting Excel to PDF format. The conversion speed has doubled.
A new option has been added that allows you to stretch the original sheet based on the pagebreaks: x.PageStyle.PageScale.ScaleByPageBreak();
Qualitatively improved the source code and removed many dependencies. We also optimized the work of the library for cloud solutions: Azure, Google Cloud, AWS, etc.
Fixed a bug with incorrect reading of the date in the source document.
In some files, characters disappeared if they went beyond the visibility of the cell border.
Fixed minor issues from our customers, thereby the component became more error-free.

2023.8.31 - August 31st, 2023

We present to your attention a completely new engine of Excel to PDF .Net 2023.8!
Let's see what's new:

We have added support for the XLSX format. Now our component complies with all modern document management requirements.
XLSX files are the standard extension for the modern Microsoft Excel spreadsheet files. They are a zip-compressed XML spreadsheet file used to analyze and organize data. They contain numerical data separated by rows and columns within a cell. It is a modern, updated version of the original Excel file format.
Improved "XSLX to PDF" conversion speed by 3 times.
Improved "XSLX to DOCX" conversion speed by 2 times.
Improved "XLSX to RTF" conversion speed by 4 times.
Added support for multiple versions of PDF format: PDF 1.2 — 1.7, PDF/A-1a — PDF/A-3u. https://en.wikipedia.org/wiki/PDF/A.
Improves performance when reading any of the Range object's properties, especially in case of large Ranges. This applies to all objects that are inherited from Range (WorkSheet, RangeRow etc.)
Reworked interfaces for interaction between XLSX — PDF, DOCX, RTF. But they left the obverse compatible with older versions. This will allow old customers to easily migrate to the new engine.
Fixes some other rare bugs that occasionally might result in a corrupted file.
.NET 8.X: Improved speed and stability of the dll with the operation into memory.
Fixes a bug where files containing pivot tables were loaded through Excel to PDF .Net then saved and resulting files come out corrupted.
Greatly improves performance, generating a PDF file with 10000 used cells used to take up 65 seconds takes only 18 seconds (will vary depending on operations performed on a cell by your code).

2023.6.22 - June 22nd, 2023

We are very excited to announce the official release of our new Excel to PDF .Net 2023.6!
Starting from this version, assembly numbering will start from "Year/Month/Day". You can always keep track of new releases and get the latest versions.
Let's see what's new:

.NET 8.0 support: Starting from the version 2023.6 appeared the SautinSoft.ExcelToPdf.dll assemblies compiled for a unified platform .NET 8.0.
Added support for modern versions of MS Office 2021, LibreOffice 7.6.
Fixed issue with metadata in XLS/XLSX reader.
Fixed issue with emtpy text in NUMBERVALUE function.
Fixed minor issues from our customers, thereby the component became more error-free.

5.7.3.28 - March 28th, 2023

We've prepared the new release of Excel to PDF .Net 5.7:

Fixed issue with unsupported sheet type in Excel reader.
Fixed issue with date category labels in PDF writer.
Improved the algorithm for determining the auto width of the table.
Fixed minor issues from our customers, thereby the component became more error-free.

5.6.11.14 - November 14th, 2022

We've prepared the new release of Excel to PDF .Net 5.6.11:

.NET 7.0 support: Starting from the version 5.6.11 appeared the SautinSoft.ExcelToPdf.dll assemblies compiled for a unified platform .NET 7.0.
We've added a new option: "CultureInfo". Set the CultureInfo for document.
Improved conversion speed.
Fixed minor issues from our customers, thereby the component became more error-free.

5.6.4 - April 1st, 2022.

We are glad to announce about releasing new «Excel to PDF .Net 5.6»! What's new:

Excel to PDF .Net now supports platforms .NET 5 and .NET 6.
Fixed the bug: Some output Excel files of new version crashed the Microsoft Excel 2016-2019.
Finnish language - Numbers formatted as Percentage are missing the space before the percent symbol. Now is Fixed.
Fixed a bug with loading PDF/A causes StackOverflowException.
Cell background becomes black after converting to pdf. Now is Fixed.
Fixed minor issues from our customers, thereby the component became more error-free.

5.5.7.22 - July 22nd, 2021.

We are glad to announce about releasing new «Excel to PDF .Net 5.5»! What's new:

Added the new property 'Options.PdfSecurity' to set a password and permissions for the output PDF document. See example: How to make a password in the resulting PDF. The property 'Options.Password' was removed.
Improved the algorithm for determining the auto width of the table.
Fixed a bug where the application could hang.
Fixed minor issues from our customers, thereby the component became more error-free.
In license agreement added ability to get future updates with 75% discount. See the license agreement.

5.4.1.20 - January 20th, 2021.

We are glad to announce about releasing new «Excel to PDF .Net 5.4»! What's new:

First of all, We've improved our PDF-renderer in Excel to PDF .Net component by adding special Image Cache. Data for the repeated images will not be placed in PDF document twice. That innovation really affected to PDF size and the rendering speed.
Improved font matching algorithm for PDF, which helped to fix a bug with Korean characters.
Added assembly compiled for .NET 5.0 and higher.
Fixed minor issues from our customers, thereby the component became more error-free.

5.3.6.16 - June 16th, 2020

We've prepared the new release of Excel to PDF .Net 5.3:

Special Offer. In this troubled time, when many Companies are trying to maintain their existence and at the same time find an opportunity for further development. SautinSoft Company offers you to use a fully functional version of our component without any restrictions.

We can provide you by with the fully functional serial key for the product, this key will be valid until September 2020.

Then you will decide on the future use of this component in your projects.
1. Download the special version (5.3.6.16) of the component or install it from Nuget.
2. Use this key: obj.Serial = "full-function before september 2020";
3. Enjoy the fully functional version.
Fixed a bug with the message: “Boolean: String was not recognize!”

5.2.3.5 - March 5th, 2020.

We are glad to announce about releasing new «Excel to PDF .Net 5.2»! What's new:

Fixed a bug related to incorrect processing of dates in documents: 1-Nov-10, or 1-11-10.
Updated an engine and an algorithm for saving in PDF, Word.
Starting from the version 5.2 "Excel to PDF .Net" is compatible with .NET Standard 2.0, .NET Core 2.1-3.1, .NET Framework 4.7, 4.8.
Fixed minor issues from our customers, thereby the component became more error-free.

5.1.7.22 - July 22th, 2019.

«Excel to PDF .Net 5.1.7»! What's new:

Fixed some problems with Sheets.PrintArea.
Improved image positioning.

5.1.5.2 - May 22nd, 2019.

We are glad to announce about releasing new «Excel to PDF .Net 5.1.5»! What's new:

We have updated Code samples.
Improved Page Numbers property.
Fixed minor issues from our customers, thereby the component became more error-free.

5.1.3.14 - March 14th, 2019.

We are happy to offer you the new «Excel to PDF .Net 5.1!» Let's see what's new:

See what's new:

Fixed the next issue: An image with transparent background was forced to have white background, and the text under it's area was covered.
Solved the problem with scaling of pictures.
Fixed the issue with "excel to pdf" conversion and errors: "Trying to write a null of bytes" and "Object reference not set to an instance of an object".
Improved work with the definition of the height of the cell. Changes are made which allow to achieve the best result.
Fixed bugs with converting some punctuation marks (symbols) in Chinese language!
We've added a new video-manual: "How to use Excel to PDF .Net in Linux". Now, you may easily launch this component using all the features of .NET Core 2.X.

5.0.11.20 - November 20th, 2018.

We are glad to announce about releasing new «Excel to PDF .Net 5.0»! What's new:

First of all, we reworked the engine (PDF Producer) and algorithm of Excel to PDF .Net.
An error with the absence of an extreme column has been resolved.
Added assembly compiled for .NET Core 2.0 and higher, .NET Framework 4.0 and higher.
Fixed minor issues from our customers, thereby the component became more error-free.

4.8.6.24 - July 24th, 2018.

We are happy to offer you the new «Excel to PDF .Net» 4.8! Let's see what's new:

Fixed minor issues from our customers, thereby the component became more error-free.
Fixed a bug with alignment of text in the cell vertically and horizontally.
The issue with thousand separator 1.000,50 in place of 1,000.50 was fixed.

4.5.1.18 - January 17th, 2018.

We are glad to announce about releasing new «Excel to PDF .Net 4.5»! What's new:

Fixed a bug with missing images in the resulting PDF file.
"Null bytes" error was fixed.
The ‘auto-size-to-page’ feature was fixed.

4.4.10.12 - October 12th, 2017.

We are glad to announce about releasing new «Excel to PDF .Net 4.4»! What's new:

Fixed bug with selective conversion of sheets (x.Sheets.Custom).
Traditional / Simplified Chinese - bug fixed when converting "Excel to PDF".
The issue with "pdfBytes = x.ConvertBytes(ms.ToArray())" was fixed.

4.2.7.24 - July 24th, 2017.

We are happy to offer you the new «Excel to PDF .Net» 4.2! Let's see what's new:

First of all, we have significantly updated the algorithm which processes and converts the "Cell Formatting". As a rule of thumb, most of Excel workbooks contains a lot of various cell formatting: currency, date and time, fraction and so forth.

It is worth pointing out that the new algorithm became much tidy:
Another innovation for the .xlsx (SpreadsheetML) to PDF conversion. Now the component can convert images which stored in .xlsx with help of absolute positions. Previous versions worked only with images positioned relative by a cell and row.
Added assembly compiled for .NET 4.6.2.
Fancy! See us in Nuget: sautinsoft.exceltopdf.
Fixed minor issues from our customers, thereby the component became more error-free.

4.0.2.29 - February 29th, 2016.

We are glad to announce about releasing new «Excel to PDF .Net 4.0»! What's new:

Added a new conversion direction: Excel to DOCX. The component uses own C# engine to create DOCX documents, thus it doesn't require MS Word or other software installed.
We've reformed the Excel to PDF engine and fixed all known minor issues.
Added the ability to specify the version of produced PDF document, for example: PDF 1.4, PDF/A, PDF 1.7 etc.
Added new code samples in C# and VB.NET for Visual Studio 2012/2015.

3.0.9.6 - September 9th, 2011.

We are happy to release new major version Excel to PDF .Net 3.0! What's new:

Added support of *.xlsx (Excel 2007/10) format, now the component can convert XLS and XLSX to PDF, RTF.
Added new method to get number of sheets from Excel workbook.
Added 30 new code samples in C# and VB.NET for Visual Studio 2005/2008/2010.
The Demo application has been enhanced by interactive C# and VB.NET code:
Improved converting engine to make PDF result the same as Excel workbook.
The Help documentation has been improved by pictures.
Fixed minor issues: to fit Excel sheet to single PDF page (A4, A3, Letter etc).

2.8.6.7 - June 7th, 2011.

We've updated the Excel to PDF .Net 2.8.6.7! New changes:

Improved engine to process formulas.
Added new properties for scaling produced PDF result.
Fixed minor issues.

2.8.3.15 - March 15th, 2011.

We are happy to inform about releasing new Excel to PDF .Net 2.8.3.15! What's new:

Added new engine to process text in merged cells.
Improved work with fonts.
Fixed issues with page size in Excel to Word converting.

2.8.1.27 - January 27th, 2011.

We are happy to inform about releasing new Excel to PDF .Net 2.8.1.27! What's new:

Added new property PrintArea. It allows to specify custom sheets and cells which will be exported into PDF and Word. For example, we have Excel spreadsheet as shown on picture and we want to export into PDF only area (B20, D25):

After launching this code we've got PDF result (sheet 1, B20 - D25):
Fixed issue with compatibility PDF documents and Adobe Reader 6.0 or lower.
Fixed minor issues with reading Excel documents.

2.7.11.1 - November 1st, 2010.

We've released new version of the component and main feature is export XLS to Word, PDF with full Unicode support. See details:

This is a sample Excel document with Cyrillic characters:

This is the same document after export to Word (RTF) format:

This is the same document after export to PDF format:

What else changed in new version:

Produced PDF documents became lighter by size. We've added Default compression inside PDF.
Extended the property , now it allows to set page numbers, specify font name, size for page numbers and positioned them by (x,y).
Changed product price from 239 USD to 125 EUR. The price for "Site License" reduced into three times.

2.6.6.10 - June 10th, 2010.

Fixed issue with converting of spreadsheets which have multiline cells.

2.6.5.6 - May 6th, 2010. Released the new version of the library.

Now component can export XLS to PDF and Word with images.

2.1.4.21 - April 21th, 2010. We unveils the new version of Excel to PDF .Net:

Added support of these European languages: German, Czech, Faroese, Hungarian, Icelandic, Slovak, Sámi, Kashubian, Polish, Sorbian, Catalan, Irish, Occitan, Portuguese, Spanish, Danish, Dutch, French, Mandarin, Portuguese, Scottish Gaelic, Kiena, Friulian, Kurdish,Afrikaans, Welsh, Albanian.
Fixed issue for cells where text is wider than column width.

2.0.4.16 - April 16th, 2010. We've released a new update:

Updated the demo application:
- To convert custom Excel sheets.
- To convert Excel workbooks into MS Word.
Added support of attribute 'wrap text'.
Improved converting of merged cells.

2.0.4.13 - April 13th, 2010. SautinSoft unveils a new update of the Excel to PDF .Net, what's new:

Added color support for cell borders.
Added new property to auto-detect of page size.
Fixed issue with merged cells.

2.0.4.7 - April 7th, 2010. Released the new completely improved and robust version of the Excel to PDF .Net.

Fixed issue with table width, now tables in PDF/Word look the same as in XLS workbook.
Fixed issue with alignment in columns.
New converting mode: Excel to Word, RTF and new property which allows to specify output mode.
New property to specify custom worksheets for exporting to PDF, Word.
Added methods to split and merge PDF documents.

1.0.1 - November 19th, 2009

Fixed issue with converting of workbooks with several sheets to PDF.
Added new code samples.

1.0.0 - November 10th, 2009. Released first version.

Excel to PDF .Net is a standalone C# library to convert Excel spreadsheets and workbooks to PDF.

No Microsoft Excel automation.
Fast and Independent Excel to PDF solution.
Developed in 100% managed C# code.
Allows to export XLS, XLSX spreadsheets to PDF in memory.
Allows to convert XLS, XLSX to Word, RTF.
Easy to integrate in any .NET 1.1, 2.0, 3.0 and 3.5 ASP.NET, Console and WinForms applications.

Advantages.

The component converts Excel XLS to PDF in many times faster than MS Office automation.
Makes a hard-copy of your Excel document to PDF in memory.
Works at any servers with shared hosting and medium trust level!

If you need a new code example or have a question: email us at support@sautinsoft.com or ask at Online Chat (right-bottom corner of this page) or use the Form below:

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Questions and suggestions from you are always welcome!

We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.

Release Notes

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Questions and suggestions from you are always welcome!