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17 lines
312 B
Perl
Executable File
17 lines
312 B
Perl
Executable File
#!/usr/bin/perl
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use strict;
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use warnings;
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my $infile = shift ||
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die "no input file specified\n";
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my $dpcm = 58; # expected
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my $tmp = `identify -units PixelsPerCentimeter -format '%x x %y' $infile`;
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die "got unexpected density '$tmp' (fix with png-cleanup.pl)\n"
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if $tmp ne "$dpcm x $dpcm";
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exit 0;
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