How to Add a Watermark in PDF Files Using OKEN Scanner App Adding a watermark to your PDF files is one of the simplest ways to secure your content and protect your documents from being copied or misused. Whether you're working with invoices, certificates, academic materials, or business documents, watermarking helps establish authenticity and ownership. In this blog, you'll learn how to easily add a watermark to your PDF using the OKEN Scanner app , a reliable and free mobile application available on the Google Play Store . What Is OKEN Scanner? OKEN Scanner is a powerful mobile PDF scanner and editor. It allows you to scan documents, convert images into PDFs, merge pages, and importantly, add watermarks directly from your phone . With its clean interface and useful features, it’s a great option for professionals and students alike. How to Add a Watermark Using OKEN Scanner 1. Download the App Start by installing the OKEN Scanner app from the Play Store. Just search fo...
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