"This file does not look like a PDF."
What you are seeing
"This file does not look like a PDF."
#Why it happens
The address returned something that is not a PDF (an HTML login or error page is the usual culprit), or an attachment was selected whose contents are not really a PDF.
#What to do
Open the address directly and confirm it downloads a PDF rather than a web page. If it is an attachment, re-upload the correct file. Note the attachment picker also lists files with a generic or missing type, so a mis-typed non-PDF can be selected by mistake.
#Related
"This PDF is password protected."
Password-protected documents are not supported and there is no place to enter a passphrase
Configured PDF disappeared after changing "Types of file"
Switching between Public URL, Existing Page Attachment and New File Upload deliberately cl
Export and published sites
The rest of this family.
Found it? Good.
