On Mon, May 08, 2006 at 01:39:01PM +0200, Frank Küster wrote: > Jon Dowland <[EMAIL PROTECTED]> wrote: > > > At 1147099677 past the epoch, Craig Small wrote: > >> Whatever the compression is, it is not too good. > >> I'm getting about 10-30% compression on pdfs. > > > > Which raises the question, what is acceptable? I don't think > > a 10% gain in itself is worth gzipping PDFs for. If 10% was > > the "threshold", bzip2 should be used instead of gzip for > > other things in /usr/share/doc. > > > > I think PDFs use ZIP internally. ZIP has compression ratios, > > perhaps PDFs can be re-packed to use a higher ratio? > > If the PDF was generated by pdfTex on a Debian machine, the highest > compression level (9) is already used. I don't know what happens when > it's created via dvi->ps->pdf, and gs' documentation isn't clear about > that, but ps2pdf14's pdf files are even slightly smaller (well, in a > sample of two files...) As far as I can see developer-reference and debian-reference packages, PDF is quite compressive with gzip and it contains many ascii text in it. So compression of that text part is good thing.
Under gnome desktop, I think fileroller takes care this issue of compression. Under Galeon, it is not single click but just with one more click pdf.gz opens with archive manager. So I see no inconvienience. Osamu
