Karl Berry wrote: Pavel - if your setup can run pdftex ..., I surmise it can run env max_print_line=9999 pdftex ... That should be portable to everything except Windows; I have no good solution for Windows, sorry. Does not "set max_print_line=9999" have the same effect for the Windows CMD command-line interpreter ? I assume that "env" is Unix's typically cryptic way of setting environment variables. [1] D:\>set max_print_line=9999 D:\>pdftex This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/W32TeX) (preloaded format=pdftex) restricted \write18 enabled. **\wlog {abcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnop} entering extended mode abcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnop [2] D:\>set max_print_line=99 D:\>pdftex This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/W32TeX) (preloaded format=pdftex) restricted \write18 enabled. **\wlog {abcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnop} entering extended mode abcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnopabc defghijklmnopabcdefghijklmnopabcdefghijklmnopabcdefghijklmnop *