I am processing DocBook 4.5 test files under Linux using a variety of xslt processors with optional parsers and xsl-fo processors. I can see the difference between pdfs produced by fop, xep and ahf. They each have different features and produce different outputs.
I do not have a feel for the differences between the fo produced by different xslt processors. I have xsltproc, saxon 6.5 with and without the xerces parser, and saxon 10 working. The fo produced by these are slightly different sizes, but I'm not sure what differences there are. The pdfs produced from these fo files are also different sizes, but look visually identical to my eye for the test files I am using, and they are all satisfactory. I know saxon 10 accepts xslt 2.0 and 3.0, but I don't think I need those (yet?) Are there reasons to prefer one of these xslt processors to the others? Is it worth looking at the commercial processors?
