[TYPO3-dev] Backend PDF thumbnails not working

[Stefan Padberg]

Am 19.05.2015 um 17:10 schrieb Mark Howells-Mead:
> Hi there
>
> I have a problem with a few TYPO3 6.2 installations which is driving me mad. In the frontend, thumbnails are being created from PDFs using GraphicsMagick with no problem. In the Install Tool, the option [GFX][imagefile_ext] is set to the standard gif,jpg,jpeg,tif,tiff,bmp,pcx,tga,png,pdf,ai
>
> When switching to the Filelist view, the option “Display thumbnails” is active. In the affected installations, the files linked as PDF thumbnails are the PDFs themselves, instead of a generated GIF. In other installations with identical settings, it works.
>
> I have spent most of the afternoon Googling this, to no avail. Has anyone encountered this before?
>
> Many thanks for any tips
> Mark
>

Did you check with the installtool whether the image functions work 
correctly?

Regards
Stefan