: Use Ctrl+D (Windows) or Cmd+D (Mac) in Adobe to view the Fonts tab and see exactly which fonts are listed as "Embedded Subset" or "Missing". Are you trying to fix a file with this error, or CID+ Fonts - Adobe Community
: Subset CIDFont lacked the new characters you typed. Solution : Never edit a subset PDF directly. First, perform the full embedding process above, then edit. cidfont f1 f2 f3 f4 f5 f6 full
: Use Ctrl+D (Windows) or Cmd+D (Mac) in Adobe to view the Fonts tab and see exactly which fonts are listed as "Embedded Subset" or "Missing". Are you trying to fix a file with this error, or CID+ Fonts - Adobe Community
: Subset CIDFont lacked the new characters you typed. Solution : Never edit a subset PDF directly. First, perform the full embedding process above, then edit.