Yes, you can preview the images that you have selected using the JioCloud document scanner feature. On the preview screen, you can adjust the image border to adjust the part of image you want to use. Crop from sides as well as corners possible. Further, you have 2 options - you have a choice to continue, which will save the file as image or pdf for next stage. If you select retake, then the current preview image will be discarded, and you will land on previous screen to capture new image.