If it is the same field as your other topic, the answer is the same.You need to post sufficient information and steps to reproduce, including the following settings related to file upload and PDF:
- View Tag settings of the field
- The advanced settings “Embed PDF documents” and “Encrypt file path”
- File upload to database (BLOB field) or to folder (text field)
- If text field, single or multiple upload
If you have added third party extensions or JavaScripts, remove them all and test again, or you may create a clean new project to test again.You may also upgrade to v2024 and try again. If it still occurs and you are a registered user, you better send your project files to support.