If you tried to install PDF Catalog for WooCommerce and instead of a successful installation message you saw something like the image above don’t panic. It just means you uploaded the wrong zip file. The file you downloaded from CodeCanyon contains more than just the plugin. To install the plugin, unpack the zip file and inside you’ll find a folder called plugin, inside you’ll find 2 zip files, pdfcatalog.zip and pdfcatalog2.zip. pdfcatalog2.zip is what you need to install in 99% of the cases. pdfcatalog.zip is the older pure PHP version of the plugin and is offered in case you have a restricted environment which won’t let calls to web services.