Today, open a PDF file when the file is found embedded inside the .zipfile can not be opened. Of course, .pngsuch documents still open. 
Various "Trust Manager" white list online methods are invalid.
Then check the official website stated that because such documents safe, so not allowed to open.
Acrobat DC and Reader DC will be some files (such as name .bin, .exe and .bat files ending) as a threat. You can not attach these files. Acrobat DC allows you to attach unable to save or open files from Acrobat DC, such as a ZIP file. It is not recommended to do this.
.zipFile is already listed as untrusted files can be attached, but may not be opened. The software did not find a place to be able to change the default black and white lists. 
But the method is still there: the official website to stay the sentence "the administrator can modify the registry through the blacklist or whitelist" but throughout there is no other word about how to modify.
Through unremitting search, successfully modified, it is recorded as follows:
enter HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\, followed by Acrobat Readeror Adobe Acrobat, then to the version number, for example 9.0, 11.0or DCfollowed FeatureLockDown\cDefaultLaunchAttachmentPerms. 
After opening the modification tBuiltInPermList, there is a lot filename extension, to find zip, to |.zip:3|modify to |.zip:2|reopen save PDF software, you can double-click the file open / save.