pdf support for media plugin

[Alexander Danilov]

A would like to add pdf file support for media plugin.I found pdfcairo utility from poppler-utils for this task to generate png thumbnail of the first pdf page,  but I am not sure is it good idea or may be there is more easy way (some haskell library for that)?

[Jeremy Shaw]

I very much like the idea of adding PDF support to the media plugin.
In fact, the primary reason I have not already is that I did not know
offhand how to generate a thumbnail either :)

pdftocairo seems like a reasonable solution. Are you thinking something like:

pdftocairo -jpeg -l 1 -scale-to 400

where the 400 is really:

maxWidth = case size of
Tall -> 200
Grande -> 300
Venti -> 400

One potential issue with PDF support is that the other media, so far,
support the idea of being displaying inline in the page with a
specific dimension. (aka, in an <img> tag), but PDF does not really
support that. But.. it would also be nice to support audio and video
files someday -- so we should not limit ourselves based on what
version 1 did ;)

- jeremy

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