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Change a PDF Page's MediaBox in VB

Sample VB code for using PDFTron SDK to change a page's MediaBox using Rect class. Learn more about our PDF Editing & Manipulation Library.

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' Copyright (c) 2001-2019 by PDFTron Systems Inc. All Rights Reserved.

Imports System

Imports pdftron
Imports pdftron.Common
Imports pdftron.Filters
Imports pdftron.SDF
Imports pdftron.PDF

Module RectTestVB
	Dim pdfNetLoader As PDFNetLoader
	Sub New()
		pdfNetLoader = pdftron.PDFNetLoader.Instance()
	End Sub

    Sub Main()


		' Relative path to the folder containing test files.
		Dim input_path As String = "../../../../TestFiles/"
		Dim output_path As String = "../../../../TestFiles/Output/"

			Console.WriteLine("Opening the input pdf...")

			' Test  - Adjust the position of content within the page.
			Using input_doc As PDFDoc = New PDFDoc(input_path + "tiger.pdf")

				Dim pg As Page = input_doc.GetPage(1)
				Dim media_box As Rect = pg.GetMediaBox()

				media_box.x1 -= 200			 ' translate the page 200 units (1 uint = 1/72 inch)
				media_box.x2 -= 200


				input_doc.Save(output_path + "tiger_shift.pdf", 0)

				Console.WriteLine("Done. Result saved in tiger_shift.pdf")
			End Using
		Catch ex As PDFNetException
		Catch ex As Exception
		End Try
	End Sub
End Module

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