Merge pull request #495 from telerik/new-kb-change-block-text-color-i…

…n-pdf-table-660a82dac9264a21b31c875748ef554e

Added new kb article change-block-text-color-in-pdf-table

knowledge-base/change-block-text-color-in-pdf-table.md

@@ -0,0 +1,69 @@
+---
+title: Changing Block's Text Color in PDF Documents Using RadPdfProcessing
+description: Learn how to modify the text color within tables in PDF documents using the RadPdfProcessing library.
+type: how-to
+page_title: How to Modify Text Color in PDF Tables with RadPdfProcessing
+slug: change-text-color-pdf-radpdfprocessing
+tags: pdf, document, processing, text, color, foreground, table, cell, block
+res_type: kb
+ticketid: 1674934
+---
+
+## Environment
+
+| Version | Product | Author | 
+| ---- | ---- | ---- | 
+| 2024.4.1106| RadPdfProcessing |[Desislava Yordanova](https://www.telerik.com/blogs/author/desislava-yordanova)| 
+
+## Description
+
+When working with PDF documents using [RadPdfProcessing]({%slug radpdfprocessing-overview%}), you may need to change the foreground color of the text inside a table to differentiate between various pieces of information, such as an account number and its value. This knowledge base article also answers the following questions:
+- How to change the text color within a PDF table using RadPdfProcessing?
+- How to differentiate text elements in a PDF document by color?
+- How to apply foreground colors to the text of Blocks within a PDF table?
+
+## Solution
+
+To change the text color inside a table in a PDF document using RadPdfProcessing, use the **FillColor** property of [GraphicProperties]({%slug radpdfprocessing-editing-text-and-graphic-properties%}). This property controls the color used for drawing the content elements of a `Block`. You can temporarily change the graphic properties for specific text elements by using the `SaveGraphicProperties()` and `RestoreGraphicProperties()` methods. This allows you to apply different colors, at different stages, to different parts of the text inside a table cell. 
+
+Here's how to achieve this:
+
+1. Create a [Table]({%slug radpdfprocessing-editing-table%}) and add a [Row]({%slug radpdfprocessing-editing-tablerow%}) and a [Cell]({%slug radpdfprocessing-editing-tablecell%}) to it.
+2. Add a [Block]({%slug radpdfprocessing-editing-block%}) to the cell for the text you want to display.
+3. Use `SaveGraphicProperties()` to save the current graphic state.
+4. Set the [FillColor]({%slug radpdfprocessing-concepts-colors-and-color-spaces%}) property of [GraphicProperties]({%slug radpdfprocessing-editing-text-and-graphic-properties%}) to the desired color.
+5. Insert the text into the block.
+6. Use `RestoreGraphicProperties()` to revert to the previous graphic state.
+7. Repeat steps 2-6 for any additional text blocks with different colors.
+
+```csharp
+Table table = new Table();
+table.LayoutType = Telerik.Windows.Documents.Fixed.Model.Editing.Flow.TableLayoutType.FixedWidth;
+
+TableRow row = table.Rows.AddTableRow();
+TableCell cell = row.Cells.AddTableCell();
+
+// First text block
+Block block = cell.Blocks.AddBlock();
+block.SaveGraphicProperties();
+block.GraphicProperties.FillColor = new RgbColor(0, 0, 255); // Blue color for "Account No."
+block.InsertText("Account No.");
+block.RestoreGraphicProperties();
+
+// Second text block
+block = cell.Blocks.AddBlock();
+block.SaveGraphicProperties();
+block.GraphicProperties.FillColor = new RgbColor(0, 255, 0); // Green color for the account number value
+block.InsertText("12345678910");
+block.RestoreGraphicProperties();
+```
+
+![Change Text Color in PDF](images/change-text-color-pdf-radpdfprocessing.png) 
+
+By following these steps, you can successfully differentiate text elements in a PDF document by changing their foreground colors.
+
+## See Also
+
+- [Text and Graphic Properties in RadPdfProcessing]({%slugradpdfprocessing-editing-text-and-graphic-properties%})
+- [Block Content in RadPdfProcessing]({%slug radpdfprocessing-editing-block%})
+- [Colors and Color Spaces]({%slug radpdfprocessing-concepts-colors-and-color-spaces%})

libraries/radpdfprocessing/editing/text-and-graphic-properties.md

@@ -126,3 +126,4 @@ Both Text and Graphic properties contain methods that can preserve and restore t
 
  * [FixedContentEditor]({%slug radpdfprocessing-editing-fixedcontenteditor%})
  * [Block]({%slug radpdfprocessing-editing-block%})
+ * [Changing Block's Text Color in PDF Documents Using RadPdfProcessing]({%slug change-text-color-pdf-radpdfprocessing%})