A very specific topic!

Injection: The new .ftex is placed into a .cpk file or a Sider folder, which the game reads to replace the original asset. Conclusion

The Verified Download Source

After verifying integrity across multiple modding Discord servers and forums (including Evo-Web, PES-Patch, and Smoke Patch communities), the only safe, verified download for the PES 2021 Ftex Converter is:

Standard Workflow: Drag an .ftex file to the panel to get a .dds. Edit the .dds in a tool like Paint.NET or Photoshop, then drag the edited file back into the converter's DDS panel to create the new .ftex.

However, finding a "verified" download link is crucial, as downloading executable tools from unverified forums can pose significant security risks to your PC.

is the FTEX Converter, which is used by modders to convert .ftex files into editable .dds formats and vice versa. Verified Tools and Versions

Conclusion

Q: Can I convert Ftex back to PNG?
A: Yes. Simply drag the .ftex file onto the converter executable. It will reverse the process and generate a .png. (Verified feature).