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Commitffb6ef9

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Merge pull request#657 from telerik/new-kb-wordsprocessing-preventing-table-row-splitting-html-pdf-9075317d1d524354ad872db3aa8c5c43
Added new kb article wordsprocessing-preventing-table-row-splitting-html-pdf
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---
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title:Preventing Table Row Splitting Across Pages When Converting HTML to PDF
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description:Learn how to prevent table rows from splitting across pages when converting HTML content to PDF using Telerik Document Processing.
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type:how-to
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page_title:Avoiding Table Row Splitting in HTML to PDF Conversion
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meta_title:Avoiding Table Row Splitting in HTML to PDF Conversion
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slug:wordsprocessing-preventing-table-row-splitting-html-pdf
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tags:words, processing, telerik, document, html, pdf, conversion, table, row, splitting, split, flow, word, measure, calculate
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res_type:kb
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ticketid:1700721
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---
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#Environment
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| Version| Product| Author|
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| ---| ---| ----|
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| 2025.3.806| RadWordsProcessing|[Yoan Karamanov](https://www.telerik.com/blogs/author/yoan-karamanov)|
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##Description
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This article shows how to use[WordsProcessing]({%slug radwordsprocessing-overview%}) and[PdfProcessing]({%slug radpdfprocessing-overview%}) libraries to convert HTML with tables to a PDF, without splitting rows across pages.
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This knowledge base article also answers the following questions:
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- How can I prevent table rows from splitting across pages during HTML to PDF conversion?
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- How do I handle uneven row heights in tables when exporting to PDF?
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- How can I ensure HTML table rows are preserved on a single page during HTML to PDF conversion?
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##Solution
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To prevent table rows from splitting across pages, manually recreate the PDF table from scratch by copying the HTML table content to a new PDF table. Use the**Measure** method to check whether the table exceeds the page boundary. If it does, create a new page and continue building the table.
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###Steps to Implement
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1.**Set up the HTML import settings:** Use the[HtmlFormatProvider]({%slug radwordsprocessing-formats-and-conversion-html-htmlformatprovider%}) and implement the[LoadImageFromUri]({%slug radwordsprocessing-formats-and-conversion-html-settings%}#loadimagefromuri-and-loadstylesheetfromuri-events) event for resolving images in the HTML content.
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2.**Load the HTML document:** Import the HTML content into a[RadFlowDocument]({%slug radwordsprocessing-model-radflowdocument%}) object.
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3.**Extract rows from the HTML table:** Enumerate the rows from the HTML table.
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4.**Create and format a new PDF table:** For each page, create a new table and add rows while ensuring they fit within the page boundaries, while also setting the desired formatting.
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5.**Check row measurements:** After adding each row, use the**Measure** method to verify whether the table exceeds the page height. If it does, move the remaining rows to a new page.
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6.**Export the PDF:** Use the[PdfFormatProvider]({%slug radpdfprocessing-formats-and-conversion-pdf-pdfformatprovider%}) to save the final PDF document.
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![HTML to PDF Table Without Split Rows](images/html-pdf-table-no-split-rows.png)
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```csharp
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conststringInputHtmlPath="..\\..\\..\\input.html";
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conststringOutputPdfPath="..\\..\\..\\output.pdf";
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staticvoidMain(string[]args)
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{
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HtmlFormatProviderhtmlFormatProvider=newHtmlFormatProvider();
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HtmlImportSettingsimportSettings=newHtmlImportSettings();
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importSettings.LoadImageFromUri+= (s,e)=>
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{
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vardata=newSystem.Net.WebClient().DownloadData(e.Uri);
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e.SetImageInfo(data,Path.GetExtension(e.Uri).Substring(1));
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};
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htmlFormatProvider.ImportSettings=importSettings;
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RadFlowDocumenthtmlDocument;
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using (varinput=File.OpenRead(InputHtmlPath))
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htmlDocument=htmlFormatProvider.Import(input,null);
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varhtmlRows=htmlDocument.EnumerateChildrenOfType<Telerik.Windows.Documents.Flow.Model.Table>()
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.FirstOrDefault().Rows.ToList();
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varmainPdfDocument=newRadFixedDocument();
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intcurrentRowIndex=0;
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// Process rows across multiple pages
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while (currentRowIndex<htmlRows.Count)
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{
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varpdfPage=mainPdfDocument.Pages.AddPage();
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varpdfTable=CreateNewTable();
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introwsAdded=0;
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while (currentRowIndex<htmlRows.Count)
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{
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vartestTable=CreateNewTable();
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// Copy existing rows to test table
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for (inti=currentRowIndex-rowsAdded;i<currentRowIndex;i++)
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if (i>=0)AddRowToTable(testTable,htmlRows[i],pdfPage);
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AddRowToTable(testTable,htmlRows[currentRowIndex],pdfPage);
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// Check if exceeds page height
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if (testTable.Measure().Height>pdfPage.Size.Height&&rowsAdded>0)
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break;
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AddRowToTable(pdfTable,htmlRows[currentRowIndex],pdfPage);
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rowsAdded++;
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currentRowIndex++;
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}
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newFixedContentEditor(pdfPage).DrawTable(pdfTable);
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}
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File.Delete(OutputPdfPath);
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using (varoutput=File.OpenWrite(OutputPdfPath))
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newPdfFormatProvider().Export(mainPdfDocument,output,null);
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Process.Start(newProcessStartInfo(OutputPdfPath) {UseShellExecute=true });
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}
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privatestaticTelerik.Windows.Documents.Fixed.Model.Editing.Tables.TableCreateNewTable()
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{
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varborder=newBorder(1,newRgbColor(0,0,0));
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returnnewTelerik.Windows.Documents.Fixed.Model.Editing.Tables.Table
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{
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DefaultCellProperties= {Borders=newTelerik.Windows.Documents.Fixed.Model.Editing.Tables.TableCellBorders(border,border,border,border) },
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Margin=newThickness(10)
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};
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}
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privatestaticvoidAddRowToTable(Telerik.Windows.Documents.Fixed.Model.Editing.Tables.TablepdfTable,TableRowhtmlRow,RadFixedPagepdfPage)
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{
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varpdfRow=pdfTable.Rows.AddTableRow();
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for (inti=0;i<htmlRow.Cells.Count;i++)
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{
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varpdfCell=pdfRow.Cells.AddTableCell();
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pdfCell.PreferredWidth=pdfPage.Size.Width* (i==0?0.05:0.25);
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pdfCell.Padding=newThickness(5);
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pdfCell.Background= (pdfTable.Rows.Count%2==0?newRgbColor(249,249,249):newRgbColor(255,255,255));
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foreach (varhtmlBlockinhtmlRow.Cells[i].Blocks.OfType<Paragraph>())
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{
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varpdfBlock=pdfCell.Blocks.AddBlock();
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pdfBlock.HorizontalAlignment=Telerik.Windows.Documents.Fixed.Model.Editing.Flow.HorizontalAlignment.Left;
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pdfBlock.VerticalAlignment=Telerik.Windows.Documents.Fixed.Model.Editing.Flow.VerticalAlignment.Center;
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foreach (varhtmlInlineinhtmlBlock.Inlines)
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{
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if (htmlInlineisImageInlinehtmlImageInline)
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{
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using (varstream=newMemoryStream(htmlImageInline.Image.ImageSource.Data))
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pdfBlock.InsertImage(newTelerik.Windows.Documents.Fixed.Model.Resources.ImageSource(stream));
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}
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elseif (htmlInlineisRunrun)
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{
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pdfBlock.InsertText(run.Text);
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}
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elseif (htmlInlineisBreak)
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{
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pdfBlock.InsertLineBreak();
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}
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}
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}
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}
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}
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```
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##See Also
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*[Table]({%slug radpdfprocessing-editing-table-overview%})
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*[TableRow]({%slug radpdfprocessing-editing-table-tablerow%})
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*[TableCell]({%slug radpdfprocessing-editing-table-tablecell%})

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