Using ShortCode
From your admin dashboard, click on Add New PDF under the PDF Poster menu. Then upload a pdf file or enter the pdf file URL to get started.
After adding the PDF file, you will see the settings on the right sidebar like Gutenberg. Copy the shortcode. (you can also copy the shortcode after published). Now publish/save the post.
Paste the shortcode in post, page, or text widget content. Save and view the content, you will see a PDF file embedded with PDF Poster.
Using Gutenberg
Go to your Gutenberg Editor. Insert PDF Poster block.
After selecting the block. Insert PDF file the same way as ShortCode. Change the settings from the sidebar if you need.
Configure the block like Gutenberg ShortCode.
Save and view the content, you will see a PDF file embedded with PDF Poster.
There is another block called PDF Poster Selector. This block is used to select shortcode-generated PDF Posters.