Difficulty downloading online files

I have a mac computer and when I want to download online files from the

website of Government of Canada (for example: Document Checklist

(PDF, 767.09KB)

<https://www.canada.ca/content/dam/ircc/migration/ircc/english/pdf/kits/forms/imm5556e.pdf>

this message is displayed:

"Please wait

If this message is not eventually replaced by the proper contents of the

document, your PDF viewer may not be able to display this type of document.

You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or

Linux® by visiting http://www.adobe.com/go/reader_download.

For more assistance with Adobe Reader visit

http://www.adobe.com/go/acrreader".

I've downloaded the latest version of Adobe reader (2019 version for mac)

and still can't download those files.

Thanks

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