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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#][1]. Let us now jump to quickly see a little about a Java API that allows adding, finding and removing watermarks from various documents in different ways.
· Shoaib Khan · 3 min

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.
· Shoaib Khan · 4 min

Convert CAD Drawings to PDF in C#

Today, we will learn how to programmatically convert the CAD drawings to PDF format in C#. Previously, in an [earlier post][1], we did the same but in Java. We looked to convert the DWG, DGN, and DWF files into PDF document with the code example. Let us do it in C# using the document conversion API for .NET.
· Shoaib Khan · 3 min

Extract Images from Documents using C#

In this article, we will be learning to programmatically extract images from PDF, Excel, PowerPoint, and Word documents in a C# application using document parsing .NET API. [GroupDocs.Parser for .NET][1] is document parsing and data extraction .NET API. It supports document parsing and extraction of images, text, and metadata from word-processing documents, spreadsheets, presentations, archives, and email documents.
· Shoaib Khan · 3 min

Extract Images from Documents using Java

Today, we will learn to programmatically extract images from PDF, Excel, PowerPoint, and Word documents using Java. For the extraction of images, we will use [GroupDocs.Parser for Java][1]. This Java API supports the parsing of documents and extraction of images, text, and metadata from word-processing documents, spreadsheets, presentations, archives, and email documents. Extracted images can be saved in BMP, GIF, JPEG, PNG, and WebP formats.
· Shoaib Khan · 3 min

Insert OLE Objects in Word, Excel, PowerPoint using Java

Today, we will be learning to embed PDF and other different documents as OLE objects in Word, Excel, PowerPoint files using Java. For embedding the documents via Object Linking and Embedding, we will be using the GroupDocs.Merger for Java API that also allows us to efficiently combine/merge and split multiple documents with minimum lines of Java code.
· Shoaib Khan · 3 min

Verify Digital Signature in Documents using Java

In this article, we will be learning to programmatically verify the digitally signed documents using Java. The example uses PDF document for the verification, however, you may also perform verification of digitally signed word processing documents like MS Word DOC/DOCX, Excel spreadsheets XLS/XLSX, and presentations PPT/PPTX.
· Shoaib Khan · 2 min

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.
· Shoaib Khan · 3 min

Convert MSG and EML files to PDF in Java

Emails to PDF conversions are often required for referencing and requirements like sharing the email content. In this article, we will learn about how to convert email message files like MSG and EML into PDF using Java. Previously, in one of the [earlier blog posts][1], we have already learned to convert MSG & EML files using C# in .NET application. This will help to automate the Email conversion within the desktop or web applications.
· Shoaib Khan · 3 min

Merge PDF, Word Documents, Spreadsheets, Presentation Files in C#

Today, we will learn to programmatically merge PDF, Word documents, spreadsheets, presentations using C#. In an earlier post, we have seen the [merging and splitting of documents using Java][1].
· Shoaib Khan · 4 min