[NTG-context] Downsampling images in pdfTeX

From: ntg-context-bounces@ntg.nl [mailto:ntg-context-bounces@ntg.nl] On Behalf Of George N. White III

As a general principle, it makes no sense for pdftex to provide image manipulation capabilities. Such capabilities are useful to a much wider audience than the users of pdftex, so there are lots of tools to do image resampling and format conversions. All that pdftex should do is support inclusion of pdf. The limited support for including png images is a convenience, but if you are being careful you would want to make pdf images.

-- George N. White III Head of St. Margarets Bay, Nova Scotia, Canada

Having checked the pdfTeX documentation, doesn't the internal parameter \pdfcompresslevel deal with this? The documentation says: "compress level This integer parameter specifies the level of text and in-line graphics compression. pdfTEX uses zip compression as provided by zlib. A value of 0 means no compression, 1 means fastest, 9 means best, 2..8 means something in between. Just set this value to 9, unless there is a good reason to do otherwise - 0 is great for testing macros that use \pdfliteral." Best regards, Mats Broberg