I am using TexStudio to write my latex document, wich is using utf-8 encoding. All the pdf file generated can't be copy-paste. It seems like the pdf is generated as an image. Even when I change PDF reader I still have this issue. But when I put the same latex code or document on Overleaf, the texts in the pdf generated can be copy-paste.
I don't know what can be the issue. I tried the solution found here but unsuccessfully.Here is a simple code that can't be copied in my generated PDF:
\documentclass{report}\usepackage[T1]{fontenc}\usepackage{lmodern}\usepackage{lipsum}\begin{document} \lipsum[2-4] \end{document}