Add WaterMark In PDF Files

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Add WaterMark In PDF Files

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Last post 06-29-2009 1:07 AM by naimish. 6 replies.

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Add WaterMark In PDF Files

11-14-2008, 12:12 AM

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39 point Member
naimish
Member since 11-13-2006, 6:47 AM
Mumbai
Posts 25

Add Reference of iTextSharp.dll
btnAddWaterMark_Click is a button name.
AddWatermarkImage is a method name.
Enter Input File's Path in input
Enter Output File's Path in output
Enter Image's Path in water
Help ?? pandya.naimish@yahoo.com
Good Luck.

Private Sub btnAddWaterMark_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddWaterMark.Click

Dim input As String

Dim output As String

Dim water As String

If txtPath.Text = "" Or txtimgpath.Text = "" Or txtoutpath.Text = "" Then

MessageBox.Show("Please Enter Required Data", "Required Data Missing")

Else

input = txtPath.Text

water = txtimgpath.Text

output = txtoutpath.Text

AddWatermarkImage(input, output, water)

End If

End Sub

Public Shared Sub AddWatermarkImage(ByVal sourceFile As String, ByVal outputFile As String, ByVal watermarkImage As String)

Dim reader As iTextSharp.text.pdf.PdfReader = Nothing

Dim stamper As iTextSharp.text.pdf.PdfStamper = Nothing

Dim img As iTextSharp.text.Image = Nothing

Dim underContent As iTextSharp.text.pdf.PdfContentByte = Nothing

Dim rect As iTextSharp.text.Rectangle = Nothing

Dim X, Y As Single

Dim pageCount As Integer = 0

Try

If System.IO.File.Exists(sourceFile) Then

reader = New iTextSharp.text.pdf.PdfReader(sourceFile)

rect = reader.GetPageSizeWithRotation(1)

stamper = New iTextSharp.text.pdf.PdfStamper(reader, New System.IO.FileStream(outputFile, IO.FileMode.Create))

img = iTextSharp.text.Image.GetInstance(watermarkImage)

If img.Width > rect.Width OrElse img.Height > rect.Height Then

img.ScaleToFit(rect.Width, rect.Height)

X = (rect.Width - img.ScaledWidth) / 2

Y = (rect.Height - img.ScaledHeight) / 2

Else

X = (rect.Width - img.Width) / 2

Y = (rect.Height - img.Height) / 2

End If

img.SetAbsolutePosition(X, Y)

pageCount = reader.NumberOfPages()

For i As Integer = 1 To pageCount

underContent = stamper.GetUnderContent(i)

underContent.AddImage(img)

stamper.Close()

reader.Close()

Else

MessageBox.Show("File Does Not Exist", "Missing File")

End If

Catch ex As Exception

Throw ex

End Try

End Sub

Thanks & Regards,
Naimish A. Pandya
[MCTS : Web Applications]
[MCPD : Web Developer]

Filed under: PDF

Re: Add WaterMark In PDF Files

11-16-2008, 1:52 PM

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942 point Participant
Sagar Nishant
Member since 11-13-2008, 10:20 AM
Ahmedabad
Posts 152

http://www.c-sharpcorner.com/UploadFile/scottlysle/WatermarkCS05072007024947AM/WatermarkCS.aspx

Thanks,

Nishant Sagar

Re: Add WaterMark In PDF Files... in use by another process

12-09-2008, 4:57 AM

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29 point Member
WeiLuDi
Member since 01-17-2006, 10:19 AM
Posts 8

Hello.

thanks for your code...
anyway, when i try to use it, i get this error:

+ ex {"The process cannot access the file 'C:\WwwRoot\Osiris.4\Portals\0\FileLezioni\105235373_Lesson_233.pdf' because it is being used by another process."} System.Exception

i've just created the pdf in this way...

                Dim document As iTextSharp.text.Document = New iTextSharp.text.Document(rect)
                Dim writer As iTextSharp.text.pdf.PdfWriter
                writer = iTextSharp.text.pdf.PdfWriter.GetInstance(document, New FileStream(path & nameFile, FileMode.Create))
                ....
                do my job ... then i do....

document.Close()
writer.Close()

Dim watermarkImage As String = watermarkimagepath & watermarkimageName
AddWatermarkImage(path & nomeFile, path & nomeFile, watermarkImage) 'callyour procedure

is there something i forget... if the document and writer are closed... what is missing??

thanks

Rudy Vicelli