1) Download Zipped File
click the Menu at the top right, and download the source file
2) Download bbl file
click the logs and output files, then download output.ddl
3) Login to Arxiv: start new submission / update / replace / etc
- only .tex .bbl and all images needed to be zipped and uploaded
- keep the same name, e.g. output.tex, output.bbl
- in case your images stored in a directory while writing in overleaf
- remove all the name of “figure” directory for all image path in the .tex file, because they are now on the same path
- at the bottom, add \bibliography{output.bbl} for reference files
4) Special string is not allowed
e.g. greek letter in image file name