There may be instances when Adobe Indesign CC 2020 shows the following error message when you are trying to overwrite a previously exported PDF:
Cannot save to the file "FILENAME.pdf", because it is already open.
This is a known issue in Adobe Indesign CC 2020, and Xinet is not responsible for the issue.
The workaround is as follows:
- Close Indesign after every PDF Export job is completed, and then re-open it.
For more information please visit the following Indesign forum: "InDesign 2020 won't overwrite PDF".