Aldert Vaandering

NextGen NivoSlider allows you to create a <a href="http://nivo.dev7studios.com/" rel="nofollow ugc">NivoSlider</a> as a widget or with a shortcode. 
This plugin uses the ‘NextGen Gallery’ plugin to obtain the images using tags or gallery IDs.
NivoSlider is a great responsive image slideshow that is highly customizable. With a large array of effects and many additional options you are sure to find a combination that will suit your website.
Requirements:
<ul>
<li><a href="https://wordpress.org/extend/plugins/nextgen-gallery/" rel="ugc">NextGen Gallery Plugin</a></li>
</ul>
Features:
NextGen NivoSlider has been completely overhauled and is continually being added to. It currently supports all the of NivoSlider’s original functions and even has some extra’s!
<ul>
<li>Responsive!</li>
<li>Fully integrated with NextGen gallery</li>
<li>Theme support</li>
<li>Automatic URL linking (put a mailto:, http://, ftp:// or local / into your alt text)</li>
<li>Extra effect(s)</li>
<li>Shortcode and Widget support</li>
<li>Touchscreen support (experimental)</li>
</ul>
Parameters:
You can use the following parameters in the [ngg-nivoslider] shortcode. 
Defaults, where applicable, are shown between parentheses (), available options between brackets [].
<ul>
<li>title: Title for slider. Leave blank for no title. (ex: title=”My Slider”)</li>
<li>gallery: Leave blank to use all galleries or choose a gallery to use. (ex: gallery=”galleryid”)</li>
<li>order [random”|”asc”|”desc”|”sortorder”]: Order to display results in. You can choose; Random, Latest First, Oldest First, or NextGen Sortorder. Random will still work when a page is cached. (ex: order=”random”)</li>
<li>tags: comma separated list of tags to filter results by. (ex: tags=”tag1, tag2″)</li>
<li>shuffle [boolean]: If order is random and this is true will shuffle images with javascript. Useful if your are caching your pages. (ex: shuffle=”true”)</li>
<li>max_pictures: The maximum amount of pictures to load. (ex: max_pictures=”6″)</li>
<li>html_id (“slider”): HTML id to use. Defaults to ‘slider’. Needs to be different for multiple sliders on same page. (ex: html_id=”custom-slider”)</li>
<li>width: Width to use on slider. (ex: width=”200″)</li>
<li>height: Height to use on slider. (ex: height=”150″)</li>
<li>center: Centers content in container. Requires width to be set. (ex: center=”1″)</li>
<li>resize: Resizes the images using TimThumb(v2). Available options are: (ex: resize=”3″) 
 1 – Resize to Fit specified dimensions (no cropping) 
 2 – Crop and resize to best fit the dimensions (default) 
 3 – Resize proportionally to fit entire image into specified dimensions, and add borders if required 
 4 – Resize proportionally adjusting size of scaled image so there are no borders gaps</li>
<li>resizewidth: The width TimThumb will use to resize the image (sc: resizewidth=”800″)</li>
<li>resizeheight: The height TimThumb will use to resize the image (sc: resizeheight=”600″)</li>
<li>resizebg (“ffffff”): The color (denoted in hex) to use for the borders that are generated when using resizing option 3 (ex: resizebg=”a0fb69″)</li>
<li>caption [“alttext”|”description”|”both”]: Show a caption with the slide, showing either the alttext or description as set up in NextGen gallery or both as “Bolded AltText – Description”</li>
<li>htmlcaption: HTML formatted caption to show on all images (ex: htmlcaption=”Title Welcome to <a>this website</a>“)</li>
<li>showgallerytitle [boolean]: Display the gallery title (ex: showgallerytitle=”true”)</li>
<li>showgallerydesc [boolean]: Display the gallery description (ex: showgallerydesc=”true”)</li>
</ul>
Nivo slider settings:
Please check the NivoSlider website for <a href="http://nivo.dev7studios.com/#usage" rel="nofollow ugc">more details</a>.
<ul>
<li>effect: What effect to use as transition. You can specify sets like: ‘fold,fade,sliceDown’. See list below for available effects.(ex: effect=”sliceDown,sliceUp”)</li>
<li>slices: The amount of slices to divide the image to for the slice effects(ex: slices=”3″)</li>
<li>boxCols: Amount of columns to split the image into for the box effects (ex: boxcols=”10″)</li>
<li>boxRows: Amount of row to split the image into for the box effects (ex: boxrows=”8″)</li>
<li>animSpeed: Slide transition speed in milliseconds (1000ms = 1 second). (ex: animspeed=”300″)</li>
<li>pauseTime: Time to pause in milliseconds (1000ms = 1 second) before continueing to the next image (ex: pausetime=”5000″)</li>
<li>startSlide: Set starting Slide. It’s 0-index so use 0 for the first slide. (ex: startslide=”3″)</li>
<li>directionNav [“true”|”false”]: Whether to display the Next & Prev controls or not. (ex: directionnav=”true”)</li>
<li>controlNav [“true”|”false”]: 1,2,3… (ex: controlnav=”setting”)</li>
<li>controlNavThumbs [“true”|”false”]: Use thumbnails for Control Nav if set to true. (ex: controlnavthumbs=”true”)</li>
<li>thumbsWidth: Resize thumbnail to this width. Recommended to set if using thumbnails. (ex: thumbswidth=”20″)</li>
<li>thumbsHeight: Resize thumbnail to this height. Recommended to set if using thumbnails. (ex: thumbsheight=”20″)</li>
<li>thumbsContainerHeight: Height for thumbnails container. Calculation should be ‘number of thumbnail image rows’ x ‘thumbsheight’. (ex: thumbscontainerheight=”20″)</li>
<li>thumbsGap: Gap between thumbnails. (ex: thumbsgap=”5″)</li>
<li>controlNavThumbsFromRel: Use image rel for thumbs. (ex: controlnavthumbsfromrel=”setting”)</li>
<li>controlNavThumbsSearch: Replace this with… (ex: controlnavthumbssearch=”setting”)</li>
<li>controlNavThumbsReplace: …this in thumb Image src. (ex: controlnavthumbsreplace=”setting”)</li>
<li>keyboardNav: Use left & right arrows. (ex: keyboardnav=”setting”)</li>
<li>pauseOnHover: Stop animation while hovering. (ex: pauseonhover=”setting”)</li>
<li>manualAdvance: Force manual transitions. (ex: manualadvance=”setting”)</li>
<li>prexText: Text to display for previous (ex: prevtext=”prev”)</li>
<li>nextText: Text to display for next (ex: prevtext=”next”)</li>
<li>randomStart [“true”|”false”]: Start with a random slide (ex: randomstart=”true”)</li>
<li>captionOpacity: Universal caption opacity. (ex: captionopacity=”setting”)</li>
<li>disableCaptions: (ex: disablecaptions=”1″)</li>
<li>beforeChange: (ex: beforechange=”setting”)</li>
<li>afterChange: (ex: afterchange=”setting”)</li>
<li>slideshowEnd: Triggers after all slides have been shown. (ex: slideshowend=”setting”)</li>
<li>lastSlide: Triggers when last slide is shown. (ex: lastslide=”setting”)</li>
<li>afterLoad: Triggers when slider has loaded. (ex: afterload=”setting”)</li>
</ul>
Nivo Effects:
<ul>
<li>random</li>
<li>sliceDown</li>
<li>sliceDownLeft</li>
<li>sliceUp</li>
<li>sliceUpLeft</li>
<li>sliceUpDown</li>
<li>sliceUpDownLeft</li>
<li>fold</li>
<li>foldReverse</li>
<li>fade</li>
<li>slideInRight</li>
<li>slideInLeft</li>
<li>boxRandom</li>
<li>boxRain</li>
<li>boxRainReverse</li>
<li>boxRainGrow</li>
<li>boxRainGrowReverse</li>
</ul>
Shortcode examples:
<ul>
<li>[ngg-nivoslider html_id=”about-slider”]</li>
<li>[ngg-nivoslider title=”Hello” gallery=”1″ html_id=”about-slider” width=”200″ height=”150″ center=”1″]</li>
<li>[ngg-nivoslider html_id=”about-slider” directionnav=”false” controlnav=”false”]</li>
<li>[ngg-nivoslider tags=slideshow order=”random” effect=”fade” shuffle=”true” max_pictures=”12″ html_id=”slider” resizebg=”fdfdfd” resizewidth=”900″ resizeheight=”620″ resize=”3″ center=”1″ directionNav=”false” controlNav=”false” pauseTime=”10000″ animSpeed=”1000″ pauseOnHover=”false”]</li>
</ul>
<h3>To do</h3>
Feel free to suggest new features or things you’d like to see in this plugin!
<ul>
<li>Create some extra themes.</li>
<li>Scrollable thumbnails?</li>
</ul>

NextGen NivoSlider

This plugin does not taken title attribute in image which is bad for SEO. Also not working with updated version of NextGen gallery plugin. 

didn't work

The NextGen Nivoslider plugin allows you to create a NivoSlider, using images from your NextGen gallery, with a simple shortcode or widget.

MantraBrain

Ultimate Watermark is the most comprehensive WordPress image watermarking plugin available. This professional-grade solution automatically adds watermarks to images as they are uploaded to your WordPress media library, protecting your valuable content from unauthorized use.
🔒 Protect Your Images with Professional Watermarking
Built with both GD and ImageMagick support, Ultimate Watermark offers enterprise-level watermarking capabilities with extensive customization options. Whether you’re a photographer protecting your portfolio, an e-commerce store branding product images, or a content creator safeguarding your work, this plugin provides the tools you need.
🎯 Perfect for: 
* Professional photographers and studios 
* E-commerce websites and online stores 
* Content creators and bloggers 
* Corporate websites and portfolios 
* Digital artists and designers 
* Media companies and publishers
<h4>🎯 Key Features & Benefits</h4>
🖼️ Advanced Image Watermarking System 
* Automatic Watermark Application – Watermarks are applied instantly when images are uploaded 
* Bulk Watermark Operations – Process existing images in your media library with bulk actions 
* Frontend Watermarking – Support for user-uploaded images on the frontend 
* Multi-Size Targeting – Watermark specific image sizes (thumbnail, medium, large, custom) 
* Custom Post Type Support – Apply watermarks only to specific post types
⚙️ Professional Configuration Options 
* Watermark Image Management – Upload and manage multiple watermark images 
* Flexible Size Control – Choose from Original size, Custom dimensions, or Scaled percentage (1-100%) 
* Transparency Control – Adjust opacity from 0% (invisible) to 100% (fully visible) 
* Quality Optimization – Configure output image quality (1-100%) for optimal file sizes 
* Format Selection – Choose between Baseline or Progressive JPEG for better compatibility
📍 Precise Watermark Positioning 
* 9-Position Grid System – Top/Middle/Bottom × Left/Center/Right alignment options 
* Advanced Offset Controls – X and Y positioning with pixel or percentage units 
* Professional Results – Pixel-perfect positioning for brand consistency
🛡️ Comprehensive Image Protection 
* Right-Click Disable – Prevent image downloading through right-click 
* Drag & Drop Prevention – Stop users from dragging images to their desktop 
* User-Level Protection – Optional protection settings for logged-in users 
* Enhanced Security – Multiple layers of image protection
💾 Smart Backup & Recovery System 
* Automatic Backup Creation – Original images are safely backed up before watermarking 
* Configurable Backup Quality – Set backup image quality to balance file size and preservation 
* Safe Watermark Removal – Restore original images by removing watermarks 
* Data Integrity – Maintain image quality and metadata throughout the process
🔧 Technical Excellence & Performance 
* Dual Library Support – Works with both GD and ImageMagick for maximum compatibility 
* Metadata Preservation – Maintains EXIF and IPTC data for professional workflows 
* Memory Optimization – Efficient processing for large image libraries 
* WordPress 6.4 Ready – Fully compatible with the latest WordPress version 
* GPLv3 License – Open source with WordPress compatibility
<h4>🚀 Quick Setup</h4>
<ol>
<li>Install & Activate the plugin</li>
<li>Upload Watermark Image in Watermark Image settings</li>
<li>Enable Automatic Watermarking in General Settings</li>
<li>Select Target Image Sizes (avoid full size unless necessary)</li>
<li>Configure Position & Settings as needed</li>
</ol>
<h4>📋 Detailed Features</h4>
General Settings 
* Toggle automatic watermarking for new uploads 
* Enable manual watermarking for media library 
* Select specific image sizes for watermarking 
* Target custom post types 
* Enable frontend watermarking
Watermark Image Settings 
* Upload and manage watermark images 
* Size control: Original, Custom (X/Y pixels), or Scaled (1-100%) 
* Transparency adjustment (0-100%) 
* Output quality control (1-100%) 
* Image format selection (Baseline/Progressive)
Position Settings 
* 9-position alignment grid 
* X and Y offset values 
* Offset units (pixels or percentages) 
* Precise positioning control
Protection & Backup 
* Right-click disable option 
* Drag and drop prevention 
* Logged-in user protection toggle 
* Automatic backup creation 
* Backup quality settings
<h4>🎨 Use Cases</h4>
<ul>
<li>Photography Websites: Protect professional images</li>
<li>E-commerce: Brand product images</li>
<li>Portfolio Sites: Add copyright protection</li>
<li>Blogs: Prevent image theft</li>
<li>Corporate Sites: Maintain brand consistency</li>
</ul>
<h4>🔧 Technical Requirements</h4>
<ul>
<li>WordPress 5.0 or higher</li>
<li>PHP GD extension OR ImageMagick</li>
<li>Sufficient server memory for image processing</li>
<li>Write permissions for upload directory</li>
</ul>

Ultimate Watermark – Advanced Image Watermarking

Automatically add professional watermarks to your images with advanced positioning, protection features, and backup capabilities.

NextGen NivoSlider vs Ultimate Watermark – Advanced Image Watermarking