Author Archives: Shoaib Khan

Image Comparison in C# to Spot the Differences

Whether you want to build an application with spot the difference feature or if you want to compare two images within any of your image processing .NET based applications, you are at the right place. After this article, you can easily compare JPG, PNG, BMP, or images with some other file formats. Without wasting time, let's compare images in C# using the .NET API for document and image conversion.

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GroupDocs.Total Discount Offer Ends January 31st

Offer Ends 31st Jan 2021 on GroupDocs.Total

New Year 2021 starts, but soon the big offer ends on January 31st.

GroupDocs offered 25% OFF on GroupDocs.Total for .NET and Java. The offer remains valid till 31st January 2021. Avail this offer before it ends.

Do not forget to use the HOLOFF2020 coupon code while ordering to avail this discount offer.

This offer is only available on new GroupDocs.Total purchases and cannot be used in conjunction with other offers, renewals, or upgrades. Only available directly from groupdocs.com, not … Continue Reading

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Read PDF Form Fields using C#

In this article, we will learn how to read and parse PDF documents and then programmatically extract PDF form field values in C#. Earlier, we have seen how to extract values from PDF forms in Java. After reading these articles, if you have filled feedback forms, you can extract the values within your .NET & Java applications for analysis or save them in the database.

Parse PDF Forms to Extract values in C#

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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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Read PDF Form Fields in Java

In this article, we will discuss how to parse PDF document and extract values from PDF forms programmatically in Java. There are many situations, where we have several filled survey forms or feedbacks in PDF format from a large audience. We can easily extract the filled data values and use them for analysis. Let us now move straight towards reading these PDF forms and extract filled data field values within Java applications.

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Get 25% OFF on GroupDocs.Total

Winter, holidays, and discounts are together at GroupDocs.

GroupDocs offers you 25% OFF on GroupDocs.Total – all GroupDocs APIs you have ever wanted. Do not forget to use the HOLOFF2020 coupon code while ordering to avail this discount offer.

The offer will remain valid till 31st January 2021. So be one form the lucky ones to get your set of APIs.

This offer is only available on new GroupDocs.Total purchases and cannot be used in conjunction … Continue Reading

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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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