Cannot open the PDF. The file may be corrupt, or in an unsupported format.

Cannot open the PDF. The file may be corrupt, or in an unsupported format.

by neama ageb -
Number of replies: 4

Dears

I am facing a huge problem, i read all previous posts in this case, and tried all available but still not working with me:

when a professor trying to review students assignments (pdf) some files loaded in the preview and some files not loaded, although all of them works properly when downloaded, but this issue causes grading not working too. i checked all previous replies in this case and not working.

i have ghostscript working well and here is test result:


also i have unoconv working well and here is test result, and pdf working fine.



i am having moodle 3.8 on centos 7, please advice.

Average of ratings: -
In reply to neama ageb

Re: Cannot open the PDF. The file may be corrupt, or in an unsupported format.

by lior gil -
Picture of Core developers
Okay here are some shots in the dark.
  • You can start by looking in the browser's network panel. Look for the call to ajax.php with the 'pollconversions' action, and see if there's any additional information in the response.
  • Maybe the convert_submissions task stopped working and all files are converted on the spot and the large conversions failed on timeout.
  • Maybe the conversions are "stuck" in the `assignfeedback_editpdf_queue` table for some reason.
Average of ratings: Useful (1)
In reply to neama ageb

Re: Cannot open the PDF. The file may be corrupt, or in an unsupported format.

by Leon Stringer -
Picture of Core developers Picture of Particularly helpful Moodlers

Check Debug messages is NONE.

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In reply to Leon Stringer

Re: Cannot open the PDF. The file may be corrupt, or in an unsupported format.

by neama ageb -

Yes, it is none

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In reply to neama ageb

Re: Cannot open the PDF. The file may be corrupt, or in an unsupported format.

by neama ageb -
any other idea??? this error cause my page stop functioning, can't enter grade or send feedback.
Average of ratings: -