...Im Programmer and this wasn't acceptable for me....
This Libary (or Tutorial ?) is the result, its using IText for C# and it's made to use your physical CPU Cores and do Parallel Execution.
I will make it short, 1000 PDF needs 15 seconds(On a 6 Core Machine with 50% Usage Peeks), also the Filesize is 50% smaller than Adobe and there is no visual difference (if there change compression...)!
This save me a lot of time and since this is for my work also money. Adobe may be great for other tasks but not for simple merging.
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