I have decided to try paperpile but got some problems with library import from Zotero. It is exported from Zotero to RIS, But when I feed it to Zotero pdfs are not attached.
Any hint on it?
In general, it is necessary to include the RIS file and the pdfs folder in the same upload to ensure that the two are successfully linked.
For step-by-step instructions, see here: https://paperpile.com/help#guide-migrate-zotero
Looks like working now.