by 
Introduction
How to Add Watermark To Images In WordPress
Nowadays a lot of artists and photographers use WordPress to show their artwork and portfolio.
For this they use their own clicks or images but sometime other people may steal those images and use them without
permission.
To resolve this problem, some site owners add their own signature or brand name or watermark to their images.
In this tutorial, I will show you how to add a watermark to your images in WordPress using the ‘Signature Watermark’ plugin.
Steps Included :
1.Login to your WordPress Administrator.
2.Download the Signature Watermark plugin from WordPress repository and go to Dashboard >> Plugins >> Add new >> select upload.
OR
Dashboard >> Plugins >> Add new >> Search ‘Signature Watermark’ plugin.
How to download and install plugin from WordPress repository you can see it from HERE.
3.Install and activate the plugin.
4.Go to Settings >> you will see the ‘Signature Watermark’ option over here.
5.Here we need to do some configuration.
i.Select the watermark type you want to display on the image.
ii.Select the image sizes, check all check-boxes to enable watermark for all types of sizes.
iii.Select the image type(.JPG,.JPEG,.PNG,.GIF), check all check-boxes to enable automatic watermark for the selected image type.
iv.Select ‘Backup Disabled’ radio button to create a backup of each image before it is watermarked so watermark can be removed.
v.Enable show advanced feature option.
vi. save the changes and scroll-up you will see ‘Text Watermark’ tab.
vii.Go to ‘Text Watermark’ tab, Enter the watermark text, select watermark font, watermark text width, watermark text color, watermark text transparency.
viii. After these settings, go to ‘Watermark Preview’ tab and see the view of watermark on image .
Signature Watermark Ultra:
It is a pro version of the Signature Watermark Plugin with extra features. This ultra version supports watermarking images manually in Media Library. Highest quality watermark can be generated using re-sampling of images rather than its normal re-sizing. Adjustable watermark and jpeg quality can be achieved through the ultra version.