Ok English is not my language but I will try to explain myself.
When I use this application on an android 9, I push the button1 and it generates a pdf file in the folder that I created with the extension Filetools (PDFapp) see attached image 1. I'm using the Filetools and KIO4_PdfS1 extension.
Now, when I use a tablet with android 11, it creates the folder but not the pdf file.
I know that the problem is from May 5 and I have to delete the WRITE EXTERNAL STORAGE, but I don't know how to replace it or get the pdf file to be saved on my tablet with android 11.
On my tablet with android 11 it does not generate the folder in /storage/emulated/0/android/data/appinventor.ai_augustomartinfPDF/files. Why will it be?
This is rather a problem with your file manager not ms accessing the ASD directories.
The file is there, but you can't see it. See if your manager can have higher permissions to read files, or install another manager. Alternatively, connect the phone to the computer and check these folders on the computer.
Consulta lo que ha escrito @Patryk_F, el archivo está ahí en ASD, pero no puedes verlo con tu explorador en Android 11, intenta verlo desde el PC o busca en youtube otros métodos para localizar archivos en Android 11.