Can PS Elements save files in PDF/X-1a:2001 standard format?
What OS and version of Elements do you have?
In Elements 2023 for Windows, I was only able to save a file in the PDF format Version 1.3 (Acrobat 4.x).
I assume that the purpose of your question deals with printing the file.
PDF/X-1a is a standard which requires CMYK. The advice I read (which may be out of date) is that Photoshop Elements does not convert to CMYK. So (if so) this cannot be the right tool for this task.
Thanks, guys. Appericate the help.