I have also had to digitize an old graph recently, and used the following webpage very succesfully

http://arohatgi.info/WebPlotDigitizer/app3_12/

Nigel

On 05/12/2018 22:26, Jed Rothwell wrote:
I am digitizing an important old graph from Fleischmann. The process is illustrated here:

https://www.lenr-forum.com/forum/thread/5782-digitizing-an-old-graph-from-fleischmann/?postID=98837#post98837


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