oh, you are right.
it is not as of the PC site -> save as (chipnumber.pdf)
open a Formular.pdf (original), edit and then save as chipnr.pdf (276094100290524.pdf)
i want save in File.DirInternal. the app store the chipnumber in a csv (chipnr, name, date)
On a click in the table, get the chipnumber as string and expand it to "chipnr.pdf" (276094100290524.pdf)
so you can re open the pdf or send to PC.
this was my idea.