Category Archive: GroupDocs.Watermark Product Family

Official blog with announcements of latest supported features, hot fixes, technical articles, tips and videos of GroupDocs.Watermark – A document watermarking API for .NET.

Watermark PDF Files using C#

To protect your files from any illegal use or to apply branding to your documents, watermarks can be used . In this article, you will learn to programmatically add the watermarks to PDF files using C#. We will separately looking into adding watermark text and image watermarks.

The following topics are covered in this article:

  • .NET Watermarking API
  • Apply Text Watermark to PDF
  • Apply Image Watermark to PDF
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Watermark PDF Files in Java

Whether you want to apply branding to your documents or you want to protect our files from any illegal use, the watermark does the job for you. In this article, you will learn to programmatically add the watermarks to your PDF files using Java.

The following topics are covered in this article:

  • Java Watermarking API
  • Apply Text Watermark to PDF
  • Apply Image Watermark to PDF

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Watermark Presentation Slides using Java

For the protection of the documents and presentations from illegal use, we can use watermarking. In this article, we will learn to programmatically apply text and image-based watermarks to the presentations or specific slides of a presentation in Java. In another post, we have discussed applying watermarks to presentations using C#.

The following topics will be covered in this article:

  • Java Watermarking API
  • Add text watermarks to presentation slides
  • Add image watermarks to presentation slides

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Add Watermark to Presentation Slides using C#

Watermarks are normally used to protect the documents from any unauthorized use. To protect your presentations and to claim ownership, today we will learn how to programmatically add text and image watermarks to the Microsoft PowerPoint presentations within .NET applications using C#. In a separate article, we have seen applying watermarks to images in C#.

The following topic are separately and briefly covered in this artile:

  • Add text watermarks to presentation slides.
  • Add image watermarks to presentation slides.

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Add Watermark to Images using C#

Add Text Watermark to PNG image using Java and .NET

Let's see today, how to add watermarks to images. This helps you branding your official photography, and protects your pictures from any unauthorized use. This article will guide you to programmatically add text and images watermarks to your image files using C#. In an earlier post, we have seen the same to add text and image based watermarks to images using Java. After reading this article, it will not be difficult for you to add watermarks to JPG/JPEG, PNG, WebP, GIF, TIFF, JP2, BMP images using C# within your .NET application.

Let's now separately see, how we can easily add text and image-based watermarks on your pictures, photos, or image files in C# using the .NET Watermarking API for documents and images.

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Find and Remove Watermarks from Documents in Java

This article is useful for Java developers who are looking for a way to find and remove text or image watermarks from PDF, Word, Excel, PowerPoint, and Visio documents. In one of our posts we have learnt finding and removing watermarks from documents in C#. Let's now jump to quickly see a little about a Java API that allows adding, finding and removing watermarks from various documents in different ways.

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Find and Remove Watermarks from Documents in C#

Today, we will have a look at how to find and remove watermarks from documents in C#. There can be text and image-based watermarks in a document. We can easily search and programmatically remove such watermarks from many PDF, Word, Excel, PowerPoint, and Visio supported documents.

Following topics will be covered in this article:

  • .NET API for removing watermarks
  • Find watermarks in documents using C#
  • Remove watermarks from documents in C#
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Add Watermark to Images in Java

In this article, we will learn to add text and image watermarks to images using Java. There can be two ways to add watermark to images. Either you want to add the watermark with the personalized text or add an image watermark over the source image. We will see both scenarios. Currently, in addition to the JPG and PNG, this Java API supports BMP, GIF, JP2, TIFF & WebP image formats for adding watermarks on it. We can also change the style, orientation, and appearance of the watermark text.

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Watermark Password Protected Documents using GroupDocs.Watermark for .NET 19.11

C# .NET Watermarking API

Another month, another release! GroupDocs.Watermark for .NET 19.11 has been released with 4 improvements and 1 bug fix. So in this article, I’ll give you a brief overview of each improvement and fix we have included in the latest release.

First of all, let’s begin with the improvements and then see what has been fixed in v19.11.

Adding Watermark to Password Protected Documents

GroupDocs.Watermark already supports adding watermark to the password protected documents. However, we have improved and simplified the … Continue Reading

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How To Remove Watermark from PDF Documents using C#

Remove Watermark from PDF in C# – If you are looking to create an application to delete watermark from a PDF document. This article is a good learning source for C# programming developers.

Significance of Removing Watermarks from PDF documents

Remove Watermark from PDF

Watermark importance is very high for all those who intend to ascertain their copyrights if in case their data gets copied somewhere. The information contained within the watermark designates the authority of the owner and prevents other users from deleting … Continue Reading

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