Quick question

[FredWahl]

I intend to automate pdfsizeopt from my multithreaded program. There’s a potential problem if pdfsizeopt creates temporary files or folders as they have to be distinct for each thread. If so, I need to to pass an extra value that must be appended to the temporary file or folder. There could be confusion since several instances will run at the same time. Btw . How do I set a label?