add watermark to pdf c#

Adding Image watermark to Pdf while Creating it using iTextSharp ...
If you want to add an opaque image underneath everything, you should override OnStartPage() instead. ... private Image waterMark ; public MyPageEvent( Image img) { waterMark = img; } public void ... For C# , use this code.

c# add watermark to existing pdf file using itextsharp

watermark text in all the pdf pages of existing pdf - C# Corner
how to add watermark ( text or image) in existing pdf in c# .I want the ... Add + watermark +to+ pdf +file+created+at+run+time+ using + itextsharp .

Your final option is to disable validation and perform the work on your own, with the help of the validation controls. This allows you to take other information into consideration or create a specialized error message that involves other controls (such as images or buttons). You can create manual validation in one of three ways: Use your own code to verify values. In this case, you won t use any of the ASP.NET validation controls. Disable the EnableClientScript property for each validation control. This allows an invalid page to be submitted, after which you can decide what to do with it depending on the problems. Add a button with CausesValidation set to False. When this button is clicked, manually validate the page by calling the Page.Validate() method. Then examine the IsValid property, and decide what to do. The next example uses the second approach. Once the page is submitted, it examines all the validation controls on the page by looping through the Page.Validators collection. Every time it finds a control that hasn t validated successfully, it retrieves the invalid value from the input control and adds it to a string. At the end of this routine, it displays a message that describes which values were incorrect, as shown in Figure 8-4.

c# add watermark to existing pdf file using itextsharp

c# itextsharp PDF creation with watermark on each page - Stack ...
After digging into it I found the best way was to add the watermark to each page .... using the following code (perhaps iTextSharp was improved a bit since then.

add watermark to pdf using itextsharp c#

Add a Diagonal Watermark to PDF in C# - Tallcomponents
29 Aug 2011 ... This code sample shows how to add a diagonal watermark to an existing PDF in C# . pdf -add- watermark .PNG Copy static void Main(string[] ...

7. Describe why a system written in the following style would quickly become unmaintainable. After deciphering what the code is meant to do, refactor it so that it s more maintainable. (Hint: You ll need to decide which classes to reallocate the behavior to.) public class ShoppingCartHelper extends AdhocUtilThings { public ShoppingCartHelper() { init(); } public void doAction(Cart c, Book b) { if (available(b)) c.add(b); else throw new UnavailableException(b); } } 8. Which of the following statements is not true Explain why the statement is incorrect. a) An entity must have a 1:1 mapping with a row in a database table. b) A DAO can return both individual entity objects and collections of objects. c) An entity can contain references to other entities. d) An entity class can delegate to other helper classes as needed.

This technique adds a feature that wouldn t be available with automatic validation, which uses the ErrorMessage property. In that case, it isn t possible to include the actual incorrect values in the message. Here s the event handler that checks for invalid values:

Our row, though, will eventually need some tweaking:

Protected Sub cmdOK_Click(ByVal sender As Object, _ ByVal e As EventArgs) Handles cmdOK.Click Dim ErrorMessage As String = "Mistakes found: " ' Create a variable to represent the input control. Dim ctrlInput As TextBox ' Search through the validation controls. Dim ctrl As BaseValidator For Each ctrl In Me.Validators If ctrl.IsValid = False Then ErrorMessage &= ctrl.ErrorMessage & " " ' Find the corresponding input control, and change the ' generic Control variable into a TextBox variable. ' This allows access to the Text property. ctrlInput = CType( _ Me.FindControl(ctrl.ControlToValidate), TextBox) ErrorMessage &= " * Problem is with this input: " ErrorMessage &= ctrlInput.Text & " " End If Next lblMessage.Text = ErrorMessage End Sub

pdf watermark c#

Add Text Watermark and Image Watermark to PDF in C# .NET ...
C# demo to guide how to watermark PDF file, stamping text and image watermark to PDF document in C# language.

add watermark to pdf using itextsharp c#

c# itextsharp PDF creation with watermark on each page - Stack ...
21 Nov 2011 ... After digging into it I found the best way was to add the watermark to each page ... Empty; public PdfWriterEvents(string watermark ) { watermarkText = watermark ; } .... using the following code (perhaps iTextSharp was improved a bit since then.

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add watermark to pdf c#

add watermark image to pdf using itextsharp c#

add image watermark to pdf c#

add watermark image to pdf using itextsharp c#

c# add watermark to existing pdf file using itextsharp

add image watermark to pdf c#

add watermark image to pdf using itextsharp c#