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Edit Text and Image Properties ​

ComPDFKit supports to modify the properties of text and images. To configure text and image properties, you can utilize the MouseLeftButtonDownHandler event of CPDFToolManager.

Edit Text Properties ​

ComPDFKit supports modifying text properties, such as text font size, name, color, alignment, italics, bold, transparency, etc.

This example shows how to set text to 12pt, red, and bold:

C#
toolManager.MouseLeftButtonDownHandler += ToolManager_MouseLeftButtonDownHandler;
private void ToolManager_MouseLeftButtonDownHandler(object sender, MouseEventObject e)
{
    int pageIndex = -1;
    CPDFToolManager manager = sender as CPDFToolManager;
    CPDFEditArea editArea = manager.GetSelectedEditAreaObject(ref pageIndex);
    if (editArea != null && editArea.Type == CPDFEditType.EditText)
    {
        CPDFEditPage editPage = manager.GetDocument().PageAtIndex(pageIndex).GetEditPage();
        CPDFEditTextArea textArea = editArea as CPDFEditTextArea;
        Rect textRect = DataConversionForWPF.CRectConversionForRect(textArea.GetFrame());

        // Text properties
        textArea.SetCharsFontColor(255,0,0);
        textArea.SetCharsFontTransparency(255);
        textArea.SetCharsFontSize(12,true);
        textArea.SetCharsFontName("Arial");
        textArea.SetCharsFontBold(true);
        textArea.SetCharsFontItalic(true);
        textArea.SetTextAreaAlign(TextAlignType.AlignLeft);
        editPage.EndEdit();

        manager.GetCPDFViewerTool().UpdateRender(textRect, textArea);
    }
}

Edit Image Properties ​

ComPDFKit supports modifying image properties, such as rotating, cropping, mirroring, and setting transparency.

This example shows how to rotate an image and set it to semi-transparent:

C#
toolManager.MouseLeftButtonDownHandler += ToolManager_MouseLeftButtonDownHandler;
private void ToolManager_MouseLeftButtonDownHandler(object sender, MouseEventObject e)
{
    int pageIndex = -1;
    CPDFToolManager manager = sender as CPDFToolManager;
    CPDFEditArea editArea = manager.GetSelectedEditAreaObject(ref pageIndex);
    if (editArea != null && editArea.Type == CPDFEditType.EditText)
    {
        CPDFEditPage editPage = manager.GetDocument().PageAtIndex(pageIndex).GetEditPage();
        CPDFEditImageArea imageArea = editArea as CPDFEditImageArea;
         Rect imageRect = DataConversionForWPF.CRectConversionForRect(imageArea.GetFrame());
    	//Image properties.
		imageArea.Rotate(90);
        imageArea.HorizontalMirror();
        
        manager.GetCPDFViewerTool().UpdateRender(imageRect, imageArea);
        editPage.EndEdit(); 
    }
}