To put it simply, no, you do not hold the right to use it outright. There are very well defined limitations. Here are the basic Royalty Free license terms, but there are other variations and extensions you may purchase.
Royalty- Free License of use of Non-Watermarked Images and Restrictions
The high-resolution images that you download under the regular Royalty Free (RF) license may be used to make fine art prints, on a web site, in a magazine, newspaper, book or booklet, book cover, flyer, application software (apps) or any other advertising and promotional material, in either printed or electronic media, as long as the item in which the image appears does not contradict any of the restrictions below. The list is not exhaustive and if you have any uncertainty regarding the use of the images in a correct way please email support using the help form.
Web templates, greeting cards or postcards especially designed for sale, similar print-on-demand services, canvas, t-shirts, mugs, calendars, postcards, mouse pads or any other items incorporating the image in an essential manner, intended to be sold are considered redistribution (if the image is used in an essential manner). The use of Dreamstime.com images for these purposes under the regular Royalty Free license is not permitted. It is also forbidden to make the image available on a website for download (as wallpapers for example), although you may use the image in a concept in as many websites as you want, for any number of clients. For Web use, you must not use the image at a width exceeding 800 pixels unless it is included in your site's design. If the image is part of a design and manipulated accordingly, the image width can be higher than 800 pixels.
If you use the images for printed materials, the number of copies must not exceed 500,000. You may modify the images in any way required for reproduction, or include them in your own personal creations.
Buying the high-resolution image (purchasing the license) does not transfer the copyright. You may not claim that the image is your own and you may not sell, license for use, or in any way distribute the image for reuse. We recommend that you credit the agency and the photographer when you use an image. By this you benefit the community at Dreamstime.com, of which you are an integral part, and help increase your success as part of the community, which, by growing contributions, gains quantity and quality.
Once you download an image, you have the rights to use it according to the specifications of the license under which you purchased that image. If you have questions or doubts, you can also address our support service: Support