jobId restart to 1 after 255

Hi,

We use clawPdf to print pdf to a shared directory because another process read the pdf to compute things and we need to have the pdf ordered so we use ${jobId} but after 255, the jobId reset to 1! So we cannot print more than 255 pdf file.

Is there another property we could use to keep the files generated in the right order and do not clash names.

Thanks for your help