/**
 * Embedded preview mode: add `?previewOnly=1` to viewer.html; viewer.html
 * sets class `pdfjs-preview-only` on the root element.
 * Keeps navigation, zoom, and in-document find; hides file IO, print, save,
 * sidebar, secondary tools menu, and annotation editor UI.
 */
html.pdfjs-preview-only #sidebarContainer,
html.pdfjs-preview-only #sidebarResizer,
html.pdfjs-preview-only #sidebarToggle,
html.pdfjs-preview-only #toolbarViewerRight,
html.pdfjs-preview-only #secondaryToolbar,
html.pdfjs-preview-only #secondaryToolbarToggle,
html.pdfjs-preview-only #editorFreeTextParamsToolbar,
html.pdfjs-preview-only #editorInkParamsToolbar {
  display: none !important;
}