I am successfully converting PDF files to Monochrome and comprressing the results, provided I call the convert.exe program that I installed on my desktop system with the ImageMagick-6.8.2-10-Q16-x86-dll.exe installer. The command is
convert -density 600 in.pdf -threshold 15% -type bilevel -compress fax out.pdf
(see http://www.wizards-toolkit.org/discours ... 7ce#p94609)
However, as a step toward running the conversion from a web application, I tried using the convert.exe program that comes in ImageMagick-6.8.2-10-Q16-x86-windows.zip (the "no registry" installation). The conversion runs with no apparent error, but the resulting output file is not compressed and the conversion is slow. The same problem happens when I use the files installed with ImageMagick-6.8.2-10-Q16-x86-dll.exe installer, installed on a server rather than on my desktop system.
What to do? Registry /configuration file problem? But how to fix it?