We deprecated appending the signature file extension to a PKCS#7 signature Sign Live! C.C.C Version 7.x revised.
A file TEST.PDF is signed here as an example. Via menu item Tools > Settings > Signatures > Signature Creation > Signature PKCS#7 The following settings are relevant here:
Check box "Replace file extension instead of appending" aktiv: There will be a signature file according to the scheme . .p7s created (TEST.PDF.p7s).
Check box "Replace file extension instead of appending" not active: There will be a signature file according to the scheme .p7s created (TEST.p7s)