用更宽广长远的目光去看待世间万物，放开眼界去衡量，要开阔视野，着眼大局。出自《赠柳亚子先生》：“饮茶粤海未能忘，索句渝州叶正黄。三十一年还旧国，落花时节读华章。牢骚太盛防肠断，风物长宜放眼量。莫
How might one extract all images from a pdf document, at native resolution and format? (Meaning extract tiff as tiff, jpeg as jpeg, etc. and without resampling). Layout is unimportant, I don\'t care w
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