Flipset PDF viewer, 3D flipbook and document library

No. PDFs are rendered in the visitor's browser with a copy of PDF.js that ships inside the plugin. Nothing is loaded from a CDN. The few outside links, such as the share buttons, open only when a visitor clicks them.

Add view="flip" to the shortcode, or choose 3D FlipBook in the Flipset Viewer block. On narrow screens it falls back to a single page.

They render the same viewer. Use the block in the editor for a file picker and preview, and the shortcode in the classic editor, widgets or templates.

Yes. Each has a Flipset Viewer and a Flipset Library widget, and Gutenberg has matching blocks.

Yes. Translate the PDF in the Media Library and Flipset swaps in the file for the current language.

Flipset excludes its scripts from minify, combine and delay in WP Rocket, W3 Total Cache, Autoptimize, LiteSpeed Cache and SiteGround Optimizer. If another optimizer still combines them, exclude flipset-viewer.js, pdf.min.js and pdf.worker.min.js.

The file host must allow your site to fetch it (CORS headers). PDFs in your own Media Library work without extra setup.