Log file still won't upload, even though under 5MB limit, so here's a link.
https://www.amazon.co.uk/clouddrive/share/DswhmWDRvCoHPE1lVXzgjXU5Epx5KHnJaVVVkS1DbuH

Thanks.

Steve

Can you open the unrecognized scans window (Click Look at scans next to xx cans were not recognized), select a problematic scan, click on Pre-process, and post a screenshot with the scan and the pre-processed version side by side?

Hi Alexis,

File attached. Name etc. redacted.

Thanks.

Steve

Thanks. We can see that the boxes that allows AMC to detect the student and page (here +1/1/60+) are not where they are supposed to be (the colored squares show where AMC thinks they should be):

• Maybe the printed sheets are not exactly the same as the subject sheets in the project directory (this can happen when one rebuilds the documents after printing the sheets).
• Maybe the scanner distorted the image significantly, with eg. a non-constant speed along the short-side axis.

Hi Alexis,

Thanks for the speedy reply. I'm not sure how this has happened, as the project has not been rebuilt, and they are using the correct sheet. I can only assume there is some odd rescaling going on when they are printing/scanning the sheets. When I print the scanned, completed sheets at my end, they occupy noticeably less of the paper than a standard blank PDF answer paper I print direct from AMC. Are there any options I can tweak in the system to cope with this?

Thanks again.

Regards.

Steve

I can only assume there is some odd rescaling going on when they are printing/scanning the sheets

Can you try again to scan one page? If the problem comes from the scanning step, maybe it'll work the second time…
Can you also post the extracted 1/1/60 page from DOC-sujet.pdf?

We printed once using acrobat reader with the "adjust large pages" option on.
It reduced the size of the printed portion.

Hi Alexis and Rafael

Rafael: I have spoken to those who printed and scanned the sheet, as I did note that printing it from a browser preview seemed to make it smaller than when printed from a traditional PDF viewer. However, they claim to have printed it via Adobe Acrobat and say they did not scale it.

Alexis: I asked them to scan some sample pages using the flatbed and feeder, and also take some pictures with their phone. When I run them through AMC it seems some of them are recognised, but not others. For a larger sample, around 20% were recognised, the rest were rejected with the same error as above. Neither flatbed nor scanner seemed to be more reliable.

DOC-Sujet attached.

Thanks again.

Regards.

Steve

DOC-Sujet attached.

Thanks. Placing DOC-sujet (in red) on top of the scan with circles at the same position, one can see differences that lead to AMC errors. I can't say where these differences come from…

Also compare these spaces differences.