If your "fix" refers to a technical issue with a PDF or a scan, you might be looking for ways to restore image quality
: Some regional ISPs block direct file downloads from doujin sites; a VPN can sometimes bypass these interruptions. or more detailed troubleshooting for a particular downloader [] Connector not working · Issue #6169 - GitHub 23 Aug 2023 — doujindesutvtadaimakaasanpdf fix
If the above steps don't work, more advanced users sometimes use these methods: If your "fix" refers to a technical issue