PdfPageFacade.ClearContent(PdfRectangle, Boolean) Method
In This Article
Clears the document content located in the specified rectangle. Allows you to specify whether to use the page coordinate system.
Namespace: DevExpress.Pdf
Assembly: DevExpress.Pdf.v24.2.Core.dll
NuGet Package: DevExpress.Pdf.Core
#Declaration
public void ClearContent(
PdfRectangle rect,
bool usePageCoordinateSystem
)
#Parameters
Name | Type | Description |
---|---|---|
rect | Pdf |
A page rectangle to clear. |
use |
Boolean | true to use the page coordinate system; otherwise, false. |
#Remarks
The code sample below clears the upper half of the first page:
using (PdfDocumentProcessor pdfDocumentProcessor = new PdfDocumentProcessor())
{
pdfDocumentProcessor.LoadDocument("Document.pdf");
PdfPageFacade pageFacade = pdfDocumentProcessor.DocumentFacade.Pages[0];
PdfRectangle cropBox = pdfDocumentProcessor.Document.Pages[0].CropBox;
double halfPage = cropBox.Top / 2;
PdfRectangle pageRectangle = new PdfRectangle(cropBox.Left, halfPage, cropBox.Right + halfPage, cropBox.Top);
// Clear the page area
pageFacade.ClearContent(pageRectangle, true);
pdfDocumentProcessor.SaveDocument("Document_cleared.pdf");
}
See Also