how upload file pdf to server with FTP ?
use Do it to debug your blocks, see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing, and Debugging Tools
find out the value of Nama_File.Text and global nama_file and make sure these are the correct values for the UploadFile method
Taifun
example block please…
You ignored my previous suggestions
For examples search the community
Taifun