add image watermark to pdf c#

c# - ITextSharp insert text to an existing pdf - Stack Overflow
EndText(); // create the new page and add it to the pdf PdfImportedPage page = writer.GetImportedPage(reader, 1); cb.AddTemplate(page, 0, 0); // close the streams and voilá the file should be .... from the existing document using ( PdfReader reader = new PdfReader(pathin)) ... Watermark in PDF file is hiding behind images.

The Custom Errors tab allows you to specify an error page that will be displayed for specific types of HTTP errors (see Figure 12-13). As you learned, you can use various ASP.NET features to replace HTTP errors or application errors with custom messages. However, these techniques won t work if the web request never makes it to the ASP.NET service (for example, if the user requests an HTML file that doesn t exist). In this case, you may want to supplement custom ASP.NET error handling with the appropriate IIS error pages for other generic error conditions.

As explained earlier in this chapter, IIS hands off requests for ASP pages to the ASP service and requests for ASP.NET pages to the ASP.NET service. However, both ASP and ASP .NET support a variety of file types. How does IIS know which files belong to ASP.NET and which ones belong to ASP

private void updateTime() { btn.setText(new Date().toString()); }

You can find the answer in the application file mappings. To view file mappings, click the Configuration button on the Virtual Directory tab. You ll see the dialog box shown in Figure 12-14.

pdf watermark 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.

add watermark image to pdf using itextsharp c#

Using iTextSharp To Watermark /Write Text To Existing PDF's ...
11 May 2008 ... When I arrived to this client they utilized iTextSharp to " watermark " their PDF's . I' ve been ... An image with text was "underlain" into the PDF .

A robustness diagram is an object picture of a use case, whose purpose is to force refinement of both use case text and the object model. Robustness diagrams tie use cases to objects (and to the GUI). A robustness diagram isn t the same as a UML collaboration diagram. You show object-toobject communication on a collaboration diagram, but a robustness diagram is quite literally an object picture of a use case. Since the robustness diagram and the use case text have to match precisely, the robustness diagram forces you to tie the use case text to the objects, thus enabling you to drive object-oriented designs forward from use cases. An important implication of all of this is that, because the robustness diagram must show all of the use case, it must show not just the basic course, but all the alternate courses as well

You ll notice that ASP files are mapped differently than ASP.NET files. For example, .asp requests are handled by c:\[WinDir]\System32\inetsrv\asp.dll, and .aspx requests are handled by c:\[WinDir]\Microsoft.NET\Framework\[Version]\aspnet_isapi.dll. Every version of ASP.NET uses a different version of aspnet_isapi.dll (stored in a different directory), which allows a single web server to host many different types and versions of websites. If a file type isn t mapped (such as .html), its contents are sent directly to the user as plain text, without any processing. You might want to explicitly remove file mappings you don t need or mappings that could be security risks. For example, if you don t want to support classic ASP files, you may choose to remove the .asp file mapping. However, keep in mind that when you remove a mapping, you simply prevent it from being processed in its usual program. You don t prevent the user from requesting it. In other words, if the mapping for ASP files is removed, a user who requests an .asp page will receive the text that s stored in that file, which may include sensitive code that users shouldn t be allowed to see.

c# add watermark to existing pdf file using itextsharp

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.