I have the PDF form but when I try to upload, I get this error:"We're u

I have the PDF form but when I try to upload, I get this error:

"We're unable to read this PDF file. Please upload another PDF form."

What format should I use!!

Hello,

Please share the PDF file so we can check and test it on our end.  You may save it in your Google Drive or Dropbox folder then share the link here.

We'll wait for your reply. Thank you!