Display files horizontally on mobile (Grid layout)

Add this code to the Custom CSS field on the Appearance tab of your PDF Embed widget’s settings:

@media (max-width: 480px) {
.eapp-pdf-embed-grid-component {
flex-direction: row;
flex-wrap: nowrap;
width: fit-content;
max-width: unset;
}

.eapp-pdf-embed-grid-layout-component {
overflow-x: auto;
}
}