After logs in, the local files are overwritten and the documents stored locally are lost

permanentm

Because different accounts, the documents stored locally are removed
how to find my pdf back
thanks
https://s3.amazonaws.com/zotero.org/images/forums/u13647575/ff1ynocczeco84uo5d16.png

dstillman

If you mean that you switched sync accounts, when you did so, Zotero warned you that it would delete all local data for the old account, required you to check a checkbox saying "Remove all data for “[old account]” from this computer", and said to make sure you either had uploaded any data to the old account before continuing or had a backup of your Zotero data directory. Assuming one of those is the case, you can restore by either switching back to the old account or restoring from the backup.

permanentm

Yes! But I don't have a backup of the Zotero data directory. It saved in my computer only. Can I restore it from my computer? 'Zotero.sqlite.bak' doesn't exist.

dstillman

If you don't have a backup, you weren't syncing, and you switched accounts, you wouldn't be able to recover that data. Zotero does what the warning says it's going to do.

permanentm

thanks！