Refining the JS script

There is a working script (designer of business cards, flyers online). Now the final image is saved in PNG format, you need to change the format saved to PDF and save Layers layers (each picture, texts, background, logos, etc.). Separately.
If necessary, I can send examples of such working scripts, and of course a link to our working script.

P.S. The developer of the script is currently busy with other projects and can not take up the revision.