PDF Watermark API

Keep documents secure by adding watermarks to your PDF or Office files through our REST API, or by deploying our watermarking library in your self-hosted server. 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). Easily integrate with code samples available in C#, Java, .NET Core, PHP, and JavaScript.