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Merge branch 'hotfix/hotfix-v31.2.2' into EJ2-986040-hotfix
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‎Document-Processing-toc.html‎

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<li>
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<a href="/document-processing/word/word-library/net/Support-File-Formats">Supported File Formats</a>
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</li>
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<li>
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<a href="/document-processing/word/word-library/net/Feature-Matrix">Feature Matrix</a>
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</li>
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<a href="/document-processing/word/word-library/net/FAQ">FAQs</a>
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<ul>
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<ul>
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Weekly Nuget Release
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<ul><li><a href="/document-processing/release-notes/v31.2.10">v31.2.10</a></li>
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<li><a href="/document-processing/release-notes/v31.2.5">v31.2.5</a></li>
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<li><a href="/document-processing/release-notes/v31.2.4">v31.2.4</a></li>
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<li><a href="/document-processing/release-notes/v31.2.3">v31.2.3</a></li>

‎Document-Processing/PDF/PDF-Library/NET/Working-with-OCR/Troubleshooting.md‎

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</table>
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## IIS Fails to Load Tesseract OCR DLLs
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<table>
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<th style="font-size:14px" width="100px">Exception</th>
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<th style="font-size:14px">The application failed to load Tesseract OCR DLLs when hosted on IIS, resulting in the error:
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Could not find a part of the path 'C:\inetpub\wwwroot\VizarCore\x64'.</th>
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<tr>
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<th style="font-size:14px" width="100px">Reason
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</th>
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<td> * IIS couldn't load the required Tesseract and Leptonica DLLs because some system components were missing.<br>
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* The Visual C++ Redistributables for VS2015-VS2022 (x86 and x64) were not installed.<br>
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* IIS on a 64-bit server needs both redistributables to load native libraries correctly.<br>
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* The application's folder paths and permissions were not properly set up for OCR binaries.<br>
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</td>
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</tr>
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<tr>
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<th style="font-size:14px" width="100px">Solution</th>
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<td>
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<b>Installed Required Redistributables</b><br>
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Installed both <b>VC_redist.x86</b> and <b>VC_redist.x64</b> for VS2015-VS2022 on the IIS server.<br>
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<b>Updated Server</b><br>
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Applied all available Windows updates (including cumulative and Defender updates) to ensure system stability.<br>
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<b>Configured Application Paths</b><br>
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Set default paths for OCR binaries:<br>
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* C:\inetpub\wwwroot\myapp\Tesseractbinaries<br>
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* C:\inetpub\wwwroot\myapp\tessdata<br>
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<b>Set Proper Permissions</b><br>
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Ensured IIS_IUSRS group has <b>Read & Execute</b> and <b>List folder contents</b> permissions on the above directories.<br>
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<b>Observed Delayed Activation</b><br>
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OCR functionality did not activate immediately-likely due to IIS caching or delayed DLL loading-but began working shortly after configuration.<br>
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</td>
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</tr>
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</table>
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## OCR not working on Azure App Service Linux Docker Container: Exception has been thrown by the target of an invocation
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<th style="font-size:14px" width="100px">Exception</th>

‎Document-Processing/PDF/PDF-Library/NET/Working-with-action.md‎

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## Adding an action to the PDF
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The below code example illustrates how to add the action to the PDF document using [PdfLaunchAction](https://help.syncfusion.com/cr/document-processing/Syncfusion.Pdf.Interactive.PdfLaunchAction.html) class.
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The below code example illustrates how to add the action to the PDF document using [PdfLaunchAction](https://help.syncfusion.com/cr/document-processing/Syncfusion.Pdf.Interactive.PdfLaunchAction.html) class.
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To quickly get started, work with actions in your application to automate tasks and streamline workflows. Watch this video:
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{% youtube "https://youtu.be/IVunNPJNBwI?si=Iz7h7nPNmSU0pLNz" %}
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{% tabs %}
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‎Document-Processing/PowerPoint/PowerPoint-Library/NET/Feature-Matrix.md‎

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{{'**PowerPoint 2007–2016**'| markdownify }}
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</td>
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</tr>
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<tr><td>Create PowerPoint presentations from scratch or edit an existing presentation.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Open existing PowerPoint presentations from the file system or stream.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Save PowerPoint presentation to a local file, stream, or stream it to a client browser.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify paragraphs and text.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify bullets and numbering.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify images.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify tables, rows, and cells.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify shapes.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify charts.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Access and modify placeholders.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify SmartArt diagrams.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify sections.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify animation and slide transition.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify hyperlinks.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify slide notes.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Copy and move slide elements between PowerPoint presentations.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Merge multiple PowerPoint presentations.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Encrypt and open password-protected PowerPoint presentations.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Iterate over slide content.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Insert OLE objects in PowerPoint presentations.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Access and modify built-in document properties.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create, access, and modify custom document properties.</td><td> ![Yes](Feature_Matrix/yes.png) </td></tr>
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<tr><td>Create PowerPoint presentations from scratch or edit an existing presentation.</td><td> Yes </td></tr>
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<tr><td>Open existing PowerPoint presentations from the file system or stream.</td><td> Yes </td></tr>
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<tr><td>Save PowerPoint presentation to a local file, stream, or stream it to a client browser.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify paragraphs and text.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify bullets and numbering.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify images.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify tables, rows, and cells.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify shapes.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify charts.</td><td> Yes </td></tr>
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<tr><td>Access and modify placeholders.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify SmartArt diagrams.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify sections.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify animation and slide transition.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify hyperlinks.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify slide notes.</td><td> Yes </td></tr>
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<tr><td>Copy and move slide elements between PowerPoint presentations.</td><td> Yes </td></tr>
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<tr><td>Merge multiple PowerPoint presentations.</td><td> Yes </td></tr>
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<tr><td>Encrypt and open password-protected PowerPoint presentations.</td><td> Yes </td></tr>
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<tr><td>Iterate over slide content.</td><td> Yes </td></tr>
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<tr><td>Insert OLE objects in PowerPoint presentations.</td><td> Yes </td></tr>
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<tr><td>Access and modify built-in document properties.</td><td> Yes </td></tr>
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<tr><td>Create, access, and modify custom document properties.</td><td> Yes </td></tr>
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</table>

‎Document-Processing/Release-Notes/v31.2.10.md‎

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---
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title : Essential Studio® for Document Processing Release Notes - v31.2.10
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description : Learn here about the controls in the Essential Studio® for Document Processing Weekly Nuget Release - Release Notes - v31.2.10
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platform : document-processing
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documentation: ug
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---
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# Essential Studio® for Document Processing - v31.2.10 Release Notes
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{% include release-info.html date="November 12, 2025" version="v31.2.10" passed="220787" failed="0" %}
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{% directory path: _includes/release-notes/v31.2.10 %}
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{% include {{file.url}} %}
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{% enddirectory %}
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## Test Results
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| Component Name | Platform | Test Cases | Passed | Failed | Remarks |
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|:----------------------------:|:--------------------------------------------------------:|:----------:|:------:|:------:|:----------:|
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| Pdf Library (Pdf) | .NET | 13614 | 13614 | 0 | All Passed |
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| Word Library(DocIO) | .NET | 39889 | 39889 | 0 | All Passed |
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| Word Library(DocIO) | Java | 4079 | 4079 | 0 | All Passed |
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| Excel Library(XlsIO) | .NET | 37735 | 37735 | 0 | All Passed |
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| PowerPoint Library | .NET | 54394 | 54394 | 0 | All Passed |
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| Metafilerenderer | .NET | 863 | 863 | 0 | All Passed |
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| SfPdfViewer2 | Blazor | 13107 | 13107 | 0 | All Passed |
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| Pdf Viewer | Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) | 19130 | 19130 | 0 | All Passed |
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| SfPdfViewer | MAUI | 14684 | 14684 | 0 | All Passed |
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| Pdf Viewer | WPF | 2998 | 2998 | 0 | All Passed |
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| PdfViewer | WinForms | 207 | 207 | 0 | All Passed |
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| DOCX Editor(Document Editor) | Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) | 5023 | 5023 | 0 | All Passed |
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| DOCX Editor(Document Editor) | Blazor | 1943 | 1943 | 0 | All Passed |
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| Spreadsheet | Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) | 10411 | 10411 | 0 | All Passed |
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| Spreadsheet | WPF | 2710 | 2710 | 0 | All Passed |

‎Document-Processing/Word/Conversions/Word-To-PDF/NET/Word-to-pdf-settings.md‎

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{% endtabs %}
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You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/DocIO-Examples/tree/main/Word-to-PDF-Conversion/Restrict-permission-in-PDF).
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## Apply Matte to Transparent Images
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This setting allows you to determine whether to **apply a matte color to transparent images** during Word to PDF conversion, ensuring they render cleanly without unwanted borders or artifacts in the final PDF.
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The following code sample shows how to apply a matte color to transparent images during Word to PDF conversion.
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{% tabs %}
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{% highlight c# tabtitle="C# [Cross-platform]" %}
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FileStream fileStream = new FileStream("Template.docx", FileMode.Open);
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// Loads an existing Word document
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WordDocument wordDocument = new WordDocument(fileStream, FormatType.Docx);
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// Instantiates DocIORenderer instance for Word to PDF conversion
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DocIORenderer renderer = new DocIORenderer();
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// Set to true to apply a matte color to transparent images.
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renderer.Settings.ApplyMatteToTransparentImages = true;
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// Converts Word document into PDF document
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PdfDocument pdfDocument = renderer.ConvertToPDF(wordDocument);
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// Closes the instance of Word document object
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wordDocument.Close();
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// Releases the resources occupied by DocIORenderer instance
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renderer.Dispose();
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// Saves the PDF file
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pdfDocument.Save(@"../../../Output/Result.pdf");
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// Closes the instance of PDF document object
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pdfDocument.Close();
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{% endhighlight %}
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{% highlight c# tabtitle="C# [Windows-specific]" %}
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// Loads an existing Word document
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WordDocument wordDocument = new WordDocument("Template.docx");
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// Creates an instance of the DocToPDFConverter - responsible for Word to PDF conversion
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DocToPDFConverter converter = new DocToPDFConverter();
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// Set to true to apply a matte color to transparent images.
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converter.Settings.ApplyMatteToTransparentImages = true;
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// Converts Word document into PDF document
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PdfDocument pdfDocument = converter.ConvertToPDF(wordDocument);
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// Closes the instance of Word document object
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wordDocument.Close();
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// Releases the resources occupied by DocToPDFConverter instance
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converter.Dispose();
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// Saves the PDF file
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pdfDocument.Save(@"../../../Output/Result.pdf");
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// Closes the instance of PDF document object
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pdfDocument.Close();
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{% endhighlight %}
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{% highlight vb.net tabtitle="VB.NET [Windows-specific]" %}
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' Loads an existing Word document
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Dim wordDocument As New WordDocument("Template.docx")
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' Creates an instance of the DocToPDFConverter - responsible for Word to PDF conversion
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Dim converter As New DocToPDFConverter()
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' Set to true to apply a matte color to transparent images
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converter.Settings.ApplyMatteToTransparentImages = True
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' Converts Word document into PDF document
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Dim pdfDocument As PdfDocument = converter.ConvertToPDF(wordDocument)
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' Closes the instance of Word document object
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wordDocument.Close()
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' Releases the resources occupied by DocToPDFConverter instance
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converter.Dispose()
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' Saves the PDF file
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pdfDocument.Save("../../../Output/Result.pdf")
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' Closes the instance of PDF document object
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pdfDocument.Close()
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{% endhighlight %}
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{% endtabs %}

‎Document-Processing/Word/Conversions/Word-To-PDF/NET/word-to-pdf.md‎

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title: Convert Word to PDF in C# | DocIO | Syncfusion
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title: Convert Word to PDF in C# using DocIO | Syncfusion
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description: Learn how to convert a Word document to PDF, PDF/A, and PDF/UA using the .NET Word (DocIO) library without Microsoft Word or interop dependencies.
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# Convert Word to PDF using Syncfusion<sup>&reg;</sup> Word (DocIO) library
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# Convert Word to PDF using Syncfusion® Word (DocIO) library
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Syncfusion<sup>&reg;</sup> Word library (DocIO) allows you to convert Word document to PDF within a few lines of code in .NET applications and also it does not require Adobe and Microsoft Word application to be installed in the machine. Using this, you can create an input Word document from scratch or load an existing Word document and then easily convert to PDF.
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You can restrict all the permission in a PDF document using [PdfPermissionsFlags](https://help.syncfusion.com/cr/document-processing/Syncfusion.Pdf.Security.PdfPermissionsFlags.html). For further information, click [here](https://help.syncfusion.com/document-processing/word/conversions/word-to-pdf/net/word-to-pdf-settings#restrict-all-permission-in-a-pdf-document).
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### Apply Matte to Transparent Images
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This setting allows you to determine whether to **apply a matte color to transparent images** during Word to PDF conversion, ensuring they render cleanly without unwanted borders or artifacts in the final PDF. For further information, click [here](https://help.syncfusion.com/document-processing/word/conversions/word-to-pdf/net/word-to-pdf-settings#restrict-all-permission-in-a-pdf-document).
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## Font Substitution
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When the necessary fonts used in the Word document has not been installed in the production machine, then Essential<sup>&reg;</sup> DocIO uses the ”Microsoft Sans Serif” as default font for rendering the text. This leads to preservation difference in generated PDF as each font has different glyphs for characters.

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