Problem :
I have a gazillion editable PDF files. I would like to make them non editable by printing to PDF.
How can I do it on the windows command line?
My ultimate goal is to make PDF non editable and do this en masse. I found out that printing to PDF does make it non editable, but I am open to other options.
Solution :
You can use Adobe Acrobat Pro to print to PDF. Adobe Acrobat Pro also allows you to perform batch processing, so you can batch print to PDF.
See https://forums.adobe.com/thread/2540164 (mirror) for more details.
Disclaimer: at the time I write this post (2019-06-01), I work for Adobe.
There is multible tools that can print to pdf. Check out PDFCreator. If you specifically need a command line option, then pdftk is a good choice.