This example demonstrates how to programmatically add dynamic headers and footers to all pages of an existing PDF document using Aspose.PDF for .NET. This is useful for adding page numbers, confidentiality notices, document titles, or other recurring content without manually editing each page.

Steps to Add Header and Footer to PDF Pages using C#

1. Load the existing PDF document using the Document class from Aspose.PDF
2. Create a HeaderFooter object and configure a TextFragment for the header with page numbering symbols ($p and $P)
3. Set font, size, color, and alignment for the header text fragment and add it to the header’s Paragraphs collection
4. Repeat the process to create a separate footer with static or dynamic content
5. Assign the header and footer objects to each page in the document using the Page.Header and Page.Footer properties
6. Call doc.Pages.UpdatePagination() to resolve pagination placeholders like $p and $P across all pages
7. Save the modified document to a new PDF file using the Document.Save method

The steps above walk through the process of defining reusable header and footer templates, applying them to every page, and ensuring dynamic placeholders are correctly resolved before saving.

Code to Add Header and Footer to PDF Pages using C#

This example shows how to efficiently batch-add consistent headers and footers to all pages of a PDF, including support for dynamic page numbers and styled text.

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