[Pkg-gmagick-im-team] Bug#1115346: Acknowledgement (magick's conversion from a scanned and processed PNG to PDF adds additional stripes to the top and right)

[Peter Müller]

Imagemagick contains a tool that can show both PNG and PDF files, namely, display.  I expect that a simple conversion from PNG to PDF doesn't change the visual appearance in the same tool, so `display input.png` and `display output.pdf` should either both show the stripes or both ignore the stripes.

As for conversion, I don't know how to handle this exactly, but if you ask me, the default action during `convert input.png output.pdf` should probably be to follow the standard and ignore private ancillary chunks such as caNv unless some command-line option or some non-default configuration option says otherwise.