If you want to upload the local files that do not exist in the remote directory, then it's synchronization.
If you mean something else by "new files", then please give us better answer to my question "How exactly would you identify the files you want to upload?"

Sorry;
My problems not a synchronize problem. The problems is UPLOAD only new file in local folder.
Not need to sync local and remote folder.

Thank you

That's what synchronize command does, then you use -criteria=none switch.
See https://winscp.net/eng/docs/scriptcommand_synchronize#criteria

I mean I want to upload to remote only new files in a apecific folder from local drive side.

Thank you

Sorry, I do not understand the logic that you want to automate.

How exactly would you identify the files you want to upload?

Hi,
I am creating 100+ PDF files every day. I have to upload to the location on a remote server.

In the remote, somehow the files that are uploaded automatically are renamed for some purposes.

What I am looking for is that I want to automatically upload every new file to the remote server. But sometimes the generated files regenerated after 1 or 2 weeks later with the same name. So it must be recognized as a new file.

I find an extension for new download purposes but I can not manage to upload it.

Any suggestion.