Add option to not override files
Currently when using "pdftotext file.pdf file.txt" syntax, the destination file is always overridden. It would be great to have option to ignore the conversion if the file already exist. Otherwise the default behaviour could be very destructive.
For example when you specify the same file as destination (by mistake), it's going to be zeroed. So there should be some safer option to work with which won't erase the existing files.
pdftotext version 22.02.0