Dexter: Choose Name
Dexter is a service that allows you to reconstruct data from graphs you only have in PDF or as an image.
Before you can upload your source, please give your data some name. You can use that name later to do further extraction, to revisit your work, or to pass it on to colleagues.
Dexter requires support for Java applets in your browser, which has become uncommon by 2019. We'll think of something when we have time. Until then, read this blog post – or use an old operating system (Debian jessie will do) in a virtual machine.