Reading an item's /CMYK resolved the value, which copied a direct array,
then collected every entry before checking there were four. A file with a
huge numeric /CMYK paid for that on each content listing and item lookup.
Now a direct value is read where it is, a reference is followed without a
copy, and the array's length is checked before any entry is read. /Gray is
read the same way. A long /CMYK, direct or by reference, and a /Gray that is
a long array still read as no ink.
Zinadin Zidan
2153da0644