FreeFileSync Forum

Finally, I got it. Probably, it was a translation mistake. Thank you.

First of all, thank you for your attention.
I think I understood you correctly. The issue is not the name. I know the names are different, and that's why I'm comparing based on the "file size" instead of the "file dates and size". If FFS is checking just the file size (and not the name) I can't ...

As you see in the pictures I uploaded, the comparison I did is based on file sizes, and with this criteria FFS is not identifying the similarity. I've tried the same locating the pictures in a subfolder called "X" in each Folder (Folder A and Folder B) and the result is the same.
If I'm comparing ...

Then, what is the "File size comparison" made for?
And, do you know other software to compare that files properly?

First time user.
I'm just testing the FFS comparing 2 folders located on my desktop. The two folders contain the same pictures but with different names (I changed the names just to check how the FFS works).
When I use the "Comparison by File size", the two pictures seem to be the only ones in both ...