Originally Posted by haliava
Interesting. Decrypts recently loaded (via DE) pdf's just fine. Can't decrypt the file that was bought ages ago and imported in DE. Error message is "can't find book session key".
I got the same error at first. Then, I downloaded the books again. And I found a few books which I was able to decrypt (so say the prompt) but when I try to open them, it keeps saying the files are damaged.
The common denominator among all those that turned out this way is that they are downloaded thru .acsm and not ebx.etd...
Then, I tried with a test file from diesel-ebooks (using .acsm) and I was able to open it... Yet, I got the previous error with the books I bought from there.