How to remove “Image Information” and “post date/author” from a media page?

by

Add this CSS code at the end of your child themes style.css file before the Media Queries.

.attachment .post-meta {
display: none;
}

.attachment .gallery-meta {
display: none;
}

The responsive theme developers do offer a forum for theme customization support questions. http://cyberchimps.com/forum/