How can I fix "Failed to load PDF file"?

I am creating a Fillable PDF but it says "Failed to load PDF file. Please try re-uploading your PDF".

Hi,

Can you try reuploading the file by following the guide below:

https://www.jotform.com/help/548-how-can-i-import-my-own-pdf-with-smart-pdf-forms

If that doesn't work, can you provide the PDF file you referring to?

Looking forward to your reply.