These are links to libraries required by paintlib. I check these links every once in a while. Still, a link that's here may have become outdated. If you find one, please tell me - preferrably with the new location.

ftp://ftp.remotesensing.org/pub/libtiff/tiff-v3.5.7.zip

This is where you can get the latest version of libtiff tested with paintlib. There may be newer versions of libtiff than this one available at http://www.libtiff.org.

ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz

You can download the independent JPEG group's library here. The ijg's site is at http://www.ijg.org.

http://download.sourceforge.net/libpng/libpng-1.2.5.tar.gz Download the png decoder/encoder library here. The PNG home page is at http://www.libpng.org/. The official file format specification can be found at http://www.w3.org/pub/WWW/TR/REC-png.html.
http://www.gzip.org/zlib.zip zlib, the compression library used by libpng. The zlib home page is at http://www.gzip.org/zlib/.
ftp://sunsite.unc.edu/pub/Linux/libs/graphics/libungif-4.1.0.tar.gz Download the gif decoder library here. The main libungif page is at http://prtr-13.ucsc.edu/~badger/software/libungif/.
http://curl.haxx.se/download/curl-7.11.1.tar.gz Download the url support library here. The main libcurl page is at http://curl.haxx.se/.