It may happen that files you need to upload are in PSD format, which is a file extension of images created in Adobe Photoshop.
Uploading PSD files to Pics.io is as easy as uploading files of other extensions. However, as PSD files tend to be larger and heavier due to the amount of digital data PSD allows to store in one single file, Pics.io may require slightly more time to create a thumbnail for it.
After PSD file is uploaded you yourself or your teammates may realize there is more work to be done on it. As the updated version of the file is ready you may upload it as a “revision” of the initial version and see the differences between the versions contrasted. This is possible due to the visual diff tool that allows to upload two versions and visually compare them. Ultimate activity panel allows not only to track versions, but also receive comments from your colleagues. You can learn more about assets versioning here.