You are getting an error "Upload Failed General Errors: none No Preview Image." when attempting to upload a certificate (PDF Stack) to create new certificates.
- This occurs when the PDF file includes data our system is unable to upload, typically a security feature, password protection, or an electronic signature certificate, there are two ways to remove this data from the PDF file:
- Print the PDF > Scan > Save in a PDF format > Upload the new file OR
- Save the PDF file as a .jpg > Save it as a PDF > the new file will include only the image so it will be possible to upload