Naps2 console to OCRise many pdf weird behaviour

[seb]

Hey people,

I'm using AHK to handle NAPS2.console.exe.
The aim is to OCRize image PDF's into indexable text pdf's.

So here is the line used in my script :

NAPS2.Console.exe -i Scan.pdf -o ocr.pdf --ocrlang fra

Here i'm just expecting to import a pdf and export it OCRized...
What is happening is that my scanner runs and add a blank page to the end of the output pdf!

If i input a 2 pages pdf, the result is a 3 pages pdf.

This is not as painfull as it may seems but i would like to understand this behaviour. Specillay cause i don't met the problem when i use the GUI and the same profil

[seb]

The only workaround i found for this is to turn the scanner off. Therefore, no blank page is added to the pdf and the process is way faster.