Thanks for your reply, as I need the PCC from Hong Kong and the Hong Kong Police Force requests an IRCC request letter for the PCC. I'm wondering if IRCC will issue an official letter in pdf format or just an email as the letter
I have had same requiest - Hong Kong PCC.
It is just e-mail, I printed it and included to each application (my and my wife)
Also, you will need to pay in HKD, it is impossible to make bank draft in HKD in Canada, so if you don't have someone who will care about your application locally in HK, you need to make bank draft in USD with much more money to cover conertation fees. Say 50 USD.
Hong Kong police will not send paper certificate to Sydney, NS, Canada as requested, instead it will send to Canada General Consulate in Hong Kong.
So, you need to prepare fingerprints (paper) at some certified agency, make bank draft 50USD, print e-mail from IRCC, fill HK PCC form. Send via some courier (say Fedex) to HK police. Whole process took 2.5 month in my case.
Good luck