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 a powerful, photographer-grade image watermark plugin for WordPress. Add a copyright text or logo to every image you upload, batch-watermark thousands of existing photos, protect WooCommerce product galleries, and restore the originals anytime — all without leaving wp-admin.
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<h3>Quick Links</h3>
<ul>
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<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/6QcDWgtaJRU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
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<ul>
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</ul>
<h4>Core features (Free version)</h4>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Watermark types</a>
<ul>
<li>Text watermark — your copyright string, brand name, URL, or any custom text</li>
<li>Image watermark — upload a PNG/JPG/SVG logo, signature, or stamp</li>
<li>Per-template font, weight, style, decoration, color, and opacity</li>
<li>Rotation, scale, and pixel-level positioning</li>
</ul>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Application modes</a>
<ul>
<li>Automatic — watermark every image as it’s uploaded to the media library</li>
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<li>Frontend uploads — watermark images submitted from frontend forms</li>
</ul>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Conditional rules</a>
Choose exactly which images get a watermark with rules built in plain English. Combine conditions with AND/OR logic:
<ul>
<li>Image size (thumbnail, medium, large, full, plus your theme’s custom sizes)</li>
<li>Post type (posts, pages, products, custom post types)</li>
<li>File type (jpeg, png, gif, webp)</li>
<li>File size, image width, image height</li>
<li>Orientation (landscape / portrait / square)</li>
<li>Aspect ratio</li>
<li>User role</li>
<li>Post category</li>
<li>Product category & product tag (when WooCommerce is active)</li>
</ul>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Backup & restore</a>
Every original image is preserved before the watermark is burned in:
<ul>
<li>Single-click restore from the Backups admin page</li>
<li>Bulk restore — wipe watermarks from a whole upload batch</li>
<li>Storage controls — choose to keep all sizes or just the original</li>
<li>Path-traversal protected and stored under your uploads folder</li>
</ul>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Image library compatibility</a>
<ul>
<li>Imagick (preferred — sharper text rendering and better color fidelity)</li>
<li>GD fallback when Imagick is not installed</li>
<li>Live preview while you edit a watermark template</li>
<li>WebP, JPEG (baseline & progressive), PNG, and GIF output</li>
</ul>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Designed for production</a>
<ul>
<li>PSR-4 namespaced source, Composer-loaded</li>
<li>Full i18n support (<code>ultimate-watermark</code> text domain)</li>
<li>Right-click protection and drag-and-drop disable for the frontend</li>
<li>Logged-in user role bypass</li>
<li>Sensible defaults — works the moment it’s activated</li>
</ul>
<h4>Use cases</h4>
<ul>
<li>Photographers — protect portfolio shots before publishing, watermark a whole season at once, keep EXIF data intact for clients.</li>
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<li>WooCommerce stores — watermark every product photo with a logo or “© Yourshop” string; bulk-apply on launch and forget about it.</li>
<li>Stock & marketplace sellers — sample-watermark previews while keeping clean originals for paid downloads.</li>
<li>News, magazine and content sites — apply photographer credits to images on upload using dynamic placeholders (Pro).</li>
</ul>
<h4>Pro features</h4>
<a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Upgrade to Ultimate Watermark Pro</a> when you outgrow the free version. The Pro extension stays in lockstep with the free plugin and adds:
<ul>
<li><a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Unlimited watermark templates</a> — free version is limited to 1</li>
<li><a href="https://mantrabrain.com/plugins/ultimate-watermark/#pricing" rel="nofollow ugc">Dynamic content placeholders</a> — <code>{site_url}</code>, <code>{date_long}</code>, <code>{user_display_name}</code>, <code>{post_title}</code>, <code>{custom_field:key}</code> and more</li>
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<h4>Trusted by</h4>
Photographers, e-commerce shops, news sites, and marketplace owners worldwide use Ultimate Watermark to protect their images on WordPress. Every release ships with active support — opening an issue gets a real response.
<h4>Privacy</h4>
Ultimate Watermark is fully local. No images, no metadata, and no usage data are ever sent to MantraBrain or to any third party. The Pro updater contacts the licensing server only to validate your key and check for updates.

Ultimate Watermark – Image Watermark, Image Protection & Bulk Watermarking

Bulk watermark WordPress images. Add a copyright text or logo watermark to media, photos and WooCommerce products. Backup originals & restore anytime.

NextGen NivoSlider vs Ultimate Watermark – Image Watermark, Image Protection & Bulk Watermarking