I get an “Unknown Source” error about 75% of the time when I try and use the PDF merge function. What typically causes this?
I have tried sending the files to you and you don’t have the same problem. I think it has something to do with my system. Sony Vaio running Windows 7.
What version of are you using?
We suggest you may downloadv3.0 from our website to try again, will v3.0 work fine to you?