Do PA have size limit for AV scanning (not size that upload to WildFire)?

[Phikveath]

Hi, I'm looking for reference document that clearly answer below question:

1/ PA have file size limited for AV or not?

2/ What file type that PA support or not support in AV scanning?

3/ When PA need to forward file to scan on WildFire?

Please give me the document related to those 3 topic.I try google for a long time But I can't find clear answer. So I understand that PA use single-pass or pass through method that don't need to cache file. But I need clear reference for my boss.

Thank a lot

[LAYER_8]

A helpful blurb in the admin guide will answer most questions, see here.

1) No size limits, all 3 threat prevention profiles (antivirus, antispyware, vulnerability protection) scan the entire session. You are able to see which decoders are utilized in your antivirus settings.

2) See link. 

3) All files are checked against wildfire, if there is a signature for the file then it will not be uploaded. If there isn't a signature (it's a new file), it will be uploaded.