.NET Core PDF Watermark API

Add text and image watermarks to PDF or Office files through our REST API. Dynamically add dates, times, and page numbers to the header and footer of your documents. Insert lines, rectangles, ellipses, barcodes, RTF files, images, and PDFs into your document. Apply multiple watermarks to the same page or to a range of pages (odd, even, portrait, or landscape). No server setup is required — simply start your free trial or sign up for an account to integrate watermarking capabilities into your application.

Code Samples: Adding Watermarks Using .NET Core

Explore our code samples to learn how you can add watermarks to documents in your application or workflow. Or contact us to explore other solutions!

1. Add Watermarks to PDFs in .NET Core

2. Add Watermarks to Office Documents in .NET Core

Add text and image watermarks to PDF or Office files on your self-hosted server (SOAP API). Dynamically add dates, times, and pages numbers to the header and footer of your documents. Insert lines, rectangles, ellipses, barcodes, RTF files, images, and PDFs into your document. Apply multiple watermarks to the same page or to a range of pages (odd, even, portrait, or landscape). Start your free trial or sign up to download and integrate watermarking capabilities into your application.

Code Samples: Adding Watermarks Using .NET Core

Explore our code samples to learn how you can add watermarks to documents in your application or workflow. Or contact us to explore other solutions!

1. Apply Rich Watermarks to an MS Office Document Using .NET Core

2. Apply Rich Watermarks to a PDF Using .NET Core