PDF is not displaying

I have uploaded the pdf but it is not displaying.
Can you help to fix this? which option should I need to enable?

Hi @Muhammad_Shahryar,

Can you elaborate, please: where did you upload the PDF that you are expecting it to show up to your site.

Additionally, what specific version are you running (e.g. 3.4.0-4) - please include this information in your posts, as it is relevant for troubleshooting.