User error: ImageMagick error 1: convert: unable to open image `/var/www/esponprod/sites/default/files/attachments/Empowering Regional Policy in Lithuania by Dr. Gediminas esonis, Ministry of Interior.pdf': No such file or directory @ error/blob.c/OpenBlob/2712.
convert: no images defined `/var/www/esponprod/sites/default/files/pdfpreview/81c7153ac1afcf0778f61bf87d8c0e6d.jpg' @ error/convert.c/ConvertImageCommand/3210.
in _imagemagick_convert_exec() (line 519 of /var/www/esponprod/sites/all/modules/imagemagick/imagemagick.module).
Warning: filesize(): stat failed for public://pdfpreview/81c7153ac1afcf0778f61bf87d8c0e6d.jpg in file_save() (line 614 of /var/www/esponprod/includes/file.inc).
