Preview size of the PDF files in the article would vary for browsers. However, you can configure the desired width of the PDF file.

Solution

To enlarge the pdf perview:

  1. Go to the Settings ( ) icon > Knowledge base site > Custom CSS & Javascript, and Custom CSS tab is the default selection.

  2. Paste the below CSS snippet in the window.

.content_block .content_container .content_block_text p * {width: 100%;}
  1. Click Save.
    1a_Screenshot-Enlarge_the_pdf_preview_in_the_article.png

Outcome

2_Screenshot-Outcome.png