From Eltima Software:
PhotoBulk is a must-have tool for those who work with a large number of images. The app enables editing photos in bulk - any number of images can be resized, optimized, watermarked, renamed and converted into a different format in one go. Adding a watermark to your images helps protect them from unauthorized use. PhotoBulk allows you to choose a text or image watermark, adjust options such as size, background, font. Thanks to a precise per-pixel controller you can choose the exact location of your watermark and rotate it under a certain angle. A preview window enables you to see what your watermark will look like before saving it.
The Internet is not really fond of bulky images, so to post your pictures online or share them by e-mail, you might have to resize them. Whether you need to fit them into exact pixels or proportions, let PhotoBulk do this for you - hundreds and thousands of images can be resized in a single click. Same applies to optimizing images. JPEG or PNG files can be optimized for various purposes - saving valuable space on your hard drive or sharing them online - without compromising their quality. Make a note though that optimizing PNG images might take a while, JPEG images can be processed faster. Your images will surely have default names given by the devices used for taking them, and most likely they are not self-explanatory. To make it easier to work with images, you might want to change their names. PhotoBulk enables you to do it in bulk by giving a new filename, sequence or changing a starting digit and a number of zeroes.
Some websites or apps won't allow you to upload images unless they have a particular extension. PhotoBulk helps you convert a large number of your images into the most popular formats - JPEG, PNG, GIF, BMP, TIFF - in a matter of seconds. Apart from offering you a powerful functionality PhotoBulk features a clean minimalistic UI and intuitive navigation. It is extremely easy-to-use - all you have to do is to drag-and-drop images into the app's window, select a required option and click 'Start'. You can save your most used settings as presets - this will save you lots of time and effort.