This example demonstrates how to add a header image to all pages of one or more PDF documents using Aspose.PDF for .NET. It’s particularly useful for branding documents, adding company logos, or including consistent headers across reports and invoices in automated workflows.

Steps to Add a Header Image to PDF Documents using C#

1. Validate command-line arguments and ensure the header image file and at least one PDF file are provided.
2. Check that the header image file exists to avoid runtime errors during processing.
3. Iterate through each provided PDF file, verifying its existence before processing.
4. Construct a unique output file path by appending ‘_header’ to the original PDF filename.
5. Initialize a PdfFileStamp object, bind it to the input PDF, and call AddHeader() with the image path and top margin.
6. Save the modified PDF to the output path and close the PdfFileStamp to release resources.
7. Handle exceptions gracefully by logging errors for individual files without halting the entire batch process.

The program accepts the header image path followed by one or more PDF file paths as command-line arguments. For each valid PDF, it overlays the specified image at the top (with a 20-point margin) and saves the result as a new file.

Code to Add a Header Image to PDF Documents using C#

This example illustrates a robust, batch-capable approach to adding headers to PDFs using Aspose.PDF for .NET, making it suitable for integration into larger document automation pipelines.