How to Add Watermark to PDF using C# Nov 13, 2024 — Watermark Removal using Group Method The group method in iron.dll provides the user with a way of adding and removing Watermark in a PDF using C# Nov 5, 2024 — Remove Watermark From a PDF Using Group Method If a PDF file is too large to be processed locally, then it could be shared. But what if you are trying to remove the watermark of a group? Remove Watermark From PDF Using Iron. Net Framework Oct 29, 2024 — How to Add Watermark to a PDF using the Document(Watermarked) method in Iron. Net 7.50.0 Open my file with a text editor.