[murraypaul]

PaperCrop is giving incorrect output on some sections on some pdfs.
An example is attached.
Has anyone worked out what causes this?

A trace of the PDF decoding:
Op = Tf:'F8', 1,
Op = TD:8.473000, 0,
Op = Tj:'publishes articles with a political or social',
Op = TD:-12.350000, -1.198000,
Op = Tc:-0.017000,
Op = Tw:-0.022000,
Op = TJ:['edge. WhereÕ', 75, 's the science? The three of them knew', 93, '.', ],
Op = Tm:26.060000, 0, 0, 26.060000, 62.730000, 251.500000,
Op = g:0.610000,
Op = Tj:'M',
Op = Tm:9.600000, 0, 0, 9.600000, 89.450000, 263,
Op = g:0,
Op = Tc:-0.013000,
Op = Tw:-0.020000,
Op = Tj:'arch had the world biting its nails that asteroid 1997 XF-11 might',
Op = T*:
Op = Tc:-0.012000,
Op = Tw:0.058000,
Op = TJ:['pass close enough to the ear', -8, 'th in 30 years to collide. (Reanalysis', ],
Op = TD:-2.743000, -1.198000,
Op = Tw:0.126000,
Op = TJ:['promised a comfor', -6, 'table margin for safety', 87, '.) Then Hollywood staged a', ],
Op = T*:
Op = Tw:0.032000,
Op = TJ:['summertime double featur', -6, 'e, with ', ],
Op = Tf:'F10', 1,
Op = TD:14.372000, 0,
Op = Tj:'Deep Impact ',
Op = Tf:'F8', 1,
Op = TD:5.814000, 0,
Op = Tj:'destroying the world by',
Op = TD:-20.185000, -1.198000,
Op = Tj:'comet in May and ',

It is as though it has lost or corrupted the font info, and when the font gets reset everything looks ok again.