How to retain permissions when synchronizing files from local to remote

Is it possible to tell WinSCP to retain all existing permissions when uploading files from local to remote. Especially when overwriting a file, how can I ensure that the resulting file has the same permissions afterwards.

What protocol?
If SFTP, you may need to turn off Transfer Resume / Transfer to Temporary Filename:
https://winscp.net/eng/docs/resume#automatic
https://winscp.net/eng/docs/ui_pref_resume

martin wrote:

What protocol?
If SFTP, you may need to turn off Transfer Resume / Transfer to Temporary Filename:
https://winscp.net/eng/docs/resume#automatic
https://winscp.net/eng/docs/ui_pref_resume

I'm using a synchronize script via SCP, but I can use sftp if need be.

nickbe wrote:

I'm using a synchronize script via SCP, but I can use sftp if need be.

Make sure you have Set permissions transfer setting turned off:
https://winscp.net/eng/docs/ui_transfer_custom

How do I set this in a script? And what exactly do I need to set?
To describe the complete set up: I want to use WinScp to backup multiple folders and to be able to restore them without overwriting the existing permissions :roll:

That option is off by default.
Your script may take a on-default configuration from WinSCP GUI.
You should better isolate your script from GUI configuration:
https://winscp.net/eng/docs/scripting#configuration