Preprints are on the rise, and they're gaining in popularity on Overleaf! Her... - Overleaf Blog

"Overleaf – originally created by two mathematicians who used the arXiv to share their own research – has supported preprint submissions right from our first integration: almost four years ago to the day in March 2013, Overleaf (then called WriteLaTeX) launched a direct submission link with figshare. This allowed authors to instantly make their work more discoverable and more citable, as figshare provides DOIs to all published items, whether they are figures, datasets, or manuscripts...such as those written on Overleaf!

Since then, we've continued to expand our range of preprint server integrations, linking to the arXiv, bioRxiv, and PeerJ Preprints, all of which have proven popular with their authors, and also more recently to a new set of preprint servers being managed by the Center for Open Science and hosted on their Open Science Framework. Integrations with these new preprint servers, the engRxiv and SocArXiv were also an instant hit with Overleaf users, as we saw weekly submissions right from the start.

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Find the preprint server that fits with your document, and click the submission link for that repository. This will provide instructions on the next steps. That's pretty much all there is to it!

For some repositories (like Figshare) you can link your Overleaf and Figshare accounts and push and pull information between the two systems. For others, it will provide you with instructions, access to download the necessary documents and a link to the repository submission system.

If you prefer to upload your document to the Overleaf Gallery, you can find that option at the top of the Journal and Services screen. This will allow you to share your document and/or add it as a template on Overleaf for others to use."