how i take preview documents?


i'm operative record pity website, i need proceed take screenshots uploaded documents.



the site support several record formarts, plain calm business papers (doc, xls, ppt, ...), videos (mpeg, avi, ...), images (jpg, gif, png, ...) pdf's, open office, etc.



each request need have "preview" it, good biased fan wants following formats have previews: doc, xls, ppt pdf. files format optionals, they'll have preview i proceed take them.



additionally, images problem since i only need consolidate thumbnail preview. also i ffmpeg converting videos flv i holding screenshots videos too.



i pondering controlling supports business open business formats, i don't know translates jpg nonetheless during slightest translates pdf somenthing.
the site being build php underneath drupal 5 controlling dedicated debian server box i select jod i'll webservice controlling practical server same machine.



does anybody knows improved concentration slight converting files images?



any assistance severely appreciated, interjection advance!



javier



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