if the image could be modified (change colour, cut something inside). I have also to check the copyrights before downloading it because we need it for every platform, worldwide distribution. Can someone help me?
By @Andrea66
Yes, you can modify as you wish, except if your production is for the adult industry.
And yes, you may use the asset worldwide, as stated in the licence agreement. However, you won't have the copyright to the asset, but you will have the copyright to your modifications.
Look here for more information on licensing: https://community.adobe.com/t5/stock/links-for-licensing-terms/td-p/11366788
(Disclaimer: As always with licensing, this is my interpretation of the rules. I think they are correct and advice is based on reading and interpreting the licence terms and on fair use for both the buyer and the artist/stock company, but I cannot rule out that my interpretation is wrong. I'm not an Adobe employee).