How to output a custom attribute for a file? thumbnail for pdf

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I'm trying to make file list using pdf's. I want each .pdf to have a small thumbnail as part of the list. I created a custom image attribute for my pdf files with the Handle 'Thumbfile' and have given uploaded and assigned each pdf a unique image using this attribute.
However, I cannot get the right combination to identify the file object and then output it.

Any ideas on how to output these custom attributes in a file list?
Thanks

cannonf700
 
anchoredbutterfly replied on at Permalink Reply
anchoredbutterfly
http://www.concrete5.org/marketplace/addons/thumbview-template/

Works really nice. Might do the trick for you.
cannonf700 replied on at Permalink Reply
cannonf700
Thanks for the suggestion. I've looked at that before but the problem is that this add-on deals with pages and their attributes and I need something that will work with files and their attributes. specifically I want to display an attribute called 'thumbnail' for a pdf file.

I'll take a second look at it thought and see if I can modify some of the code.
drbiskit replied on at Permalink Reply
drbiskit
Hi - I know this is quite an old thread now - but did you ever work out how to do this?

I've seen this other thread but wondered if you had a better or alternative method at all?
http://www.concrete5.org/community/forums/customizing_c5/pdf-thumbn...

Thanks.