Potrace

A DXF backend was added. The output is in the drawing interchange format used by computer aided design software. The Gimppath backend was changed to be compatible with current versions of GIMP. The EPS, PDF, and SVG backends now use high-resolution bounding boxes. The default scaling
of the EPS, PDF, and SVG backends is now fixed at 72dpi. A new option --flat was added to the SVG backend. A new option --tight was added to remove whitespace around the input image before calculating its
scaling and placement.

The xfig and eps backends were improved, and a fixed pagesize PDF backend was added. Support for BMP version 4 and version 5 files, as well as top-down BMP files, was added. Minor speed improvements were made to Potrace and major speed improvements were made to mkbitmap. A Gaussian blur option was added to mkbitmap. Libtool is now used to build and optionally install the Potrace library. An optional simplified progress bar was added for dumb terminals. This release also contains some portability improvements, cross-compilation improvements, and minor bug fixes.

This release contains minor bugfixes and portability improvements. Rotation is now implemented in the PDF backend.

This is a bugfix release. A bug in the progress
bar code, which caused arithmetic exceptions on
some 64-bit architectures, has been fixed.

This release is 20-60% faster than the previous release. A
new PDF backend was added. An option to display a
progress bar was added. Some spurious "premature end of
file" messages were eliminated. The core functionality was
separated into a library with a documented API, making it
easier for developers to incorporate potrace into other
software.