Hello Miguel, > I hope you'll excuse me for using the list, but I have an announcement > that might be of interest to you. > > There's a project going on here at RERO called "Multivio" whose goal > is to provide a presentation layer for archives of digital documents: > > https://www.multivio.org/
[...] > Please don't hesitate to take a look at the project site > <https://www.multivio.org/>, try some examples, try it with your own > documents and send us some feedback at <i...@multivio.org>. It certainly looks interesting! I've tested a couple of PDF files from our site. The first one happened to weight 11 MB (an old scanned journal, from http://ddd.uab.cat/record/53804), and it took so long that I had to abort it: http://demo.multivio.org/client/#get&url=http://ddd.uab.cat/pub/garbanzo/garbanzo_a1873n47.pdf The second one, a modern native PDF (from http://ddd.uab.cat/record/5), was sligtly better: http://demo.multivio.org/client/#get&url=http://ddd.uab.cat/pub/autonoma/autonoma_a2010m3n233.pdf I'd certainly choose Multivio instead of our Flash based equivalent (no, it's no my fault, I give it to you so you can see a propietary alternative): http://www.uab.es/revista-autonoma/ However, I'd say that the quality of the thumbnails can be improved. Which tool are you using? In my case, I've found that, by far, the fastest and best results are using a combination of Xpdf's pdftoppm and Imagemagick's convert. We create the thumbnails of the first page of our PDFs this way (simplified): $ pdftoppm -f $page -l $page $file.pdf $file $ convert -thumbnail 85 $file-00000$page.ppm $file.png $ rm $file-00000$page.ppm pdftoppm converts all pages to ppm if no -f or -l parameters are given. Relying on ImageMagick's own PDF to PNG (or any other graphic format) conversion, the route goes through Ghostscript, and it brings any system to its knees, and the quality is worses. Hope it helps, Ferran
