本文介绍了-sSUBSTFONT, -sCIDFSubstFont, -sCIDFSubstPath 不替换 PDF 字体的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
in.pdf 有这些字体:
name type encoding emb sub uni object ID
------------------------------------ ----------------- ---------------- --- --- --- ---------
XUBADJ+GlyphLessFont CID TrueType Identity-H yes yes yes 236 0
JZXXTO+GlyphLessFont CID TrueType Identity-H yes yes yes 232 0
NXIYZI+GlyphLessFont CID TrueType Identity-H yes yes yes 228 0
PQVSVF+GlyphLessFont CID TrueType Identity-H yes yes yes 224 0
TCZVSD+GlyphLessFont CID TrueType Identity-H yes yes yes 220 0
XQFVGO+GlyphLessFont CID TrueType Identity-H yes yes yes 216 0
RBABWN+GlyphLessFont CID TrueType Identity-H yes yes yes 212 0
VZZOSB+GlyphLessFont CID TrueType Identity-H yes yes yes 209 0
MIIWJT+GlyphLessFont CID TrueType Identity-H yes yes yes 204 0
POGIAG+GlyphLessFont CID TrueType Identity-H yes yes yes 200 0
XCWYMK+GlyphLessFont CID TrueType Identity-H yes yes yes 196 0
DYONOM+GlyphLessFont CID TrueType Identity-H yes yes yes 192 0
UAXGNC+GlyphLessFont CID TrueType Identity-H yes yes yes 188 0
SFJKWI+GlyphLessFont CID TrueType Identity-H yes yes yes 184 0
FNZBKK+GlyphLessFont CID TrueType Identity-H yes yes yes 180 0
HAZYJU+GlyphLessFont CID TrueType Identity-H yes yes yes 176 0
ZVQPUS+GlyphLessFont CID TrueType Identity-H yes yes yes 172 0
PQZKFS+GlyphLessFont CID TrueType Identity-H yes yes yes 168 0
PGOAHQ+GlyphLessFont CID TrueType Identity-H yes yes yes 164 0
XDOPUZ+GlyphLessFont CID TrueType Identity-H yes yes yes 160 0
RFWRSV+GlyphLessFont CID TrueType Identity-H yes yes yes 156 0
IANVPF+GlyphLessFont CID TrueType Identity-H yes yes yes 152 0
DSZVBD+GlyphLessFont CID TrueType Identity-H yes yes yes 148 0
LSDXRT+GlyphLessFont CID TrueType Identity-H yes yes yes 144 0
XIHSWO+GlyphLessFont CID TrueType Identity-H yes yes yes 141 0
TEWAEV+GlyphLessFont CID TrueType Identity-H yes yes yes 136 0
LYKOSV+GlyphLessFont CID TrueType Identity-H yes yes yes 132 0
BNAIKQ+GlyphLessFont CID TrueType Identity-H yes yes yes 128 0
ZNALBH+GlyphLessFont CID TrueType Identity-H yes yes yes 124 0
FFPURC+GlyphLessFont CID TrueType Identity-H yes yes yes 120 0
TAEOHD+GlyphLessFont CID TrueType Identity-H yes yes yes 116 0
RLNSOX+GlyphLessFont CID TrueType Identity-H yes yes yes 113 0
LKNUZY+GlyphLessFont CID TrueType Identity-H yes yes yes 108 0
RDFYMU+GlyphLessFont CID TrueType Identity-H yes yes yes 104 0
NXOHWC+GlyphLessFont CID TrueType Identity-H yes yes yes 100 0
LUDJFV+GlyphLessFont CID TrueType Identity-H yes yes yes 96 0
RRUFPY+GlyphLessFont CID TrueType Identity-H yes yes yes 92 0
CDUACC+GlyphLessFont CID TrueType Identity-H yes yes yes 88 0
RNMQSS+GlyphLessFont CID TrueType Identity-H yes yes yes 85 0
PDSWJI+GlyphLessFont CID TrueType Identity-H yes yes yes 80 0
BHBSVQ+GlyphLessFont CID TrueType Identity-H yes yes yes 76 0
NNFGOY+GlyphLessFont CID TrueType Identity-H yes yes yes 72 0
LSTBQQ+GlyphLessFont CID TrueType Identity-H yes yes yes 68 0
XOTJDO+GlyphLessFont CID TrueType Identity-H yes yes yes 64 0
DQQCUP+GlyphLessFont CID TrueType Identity-H yes yes yes 61 0
DSVQZE+GlyphLessFont CID TrueType Identity-H yes yes yes 57 0
VSPFUZ+GlyphLessFont CID TrueType Identity-H yes yes yes 52 0
FVVDEA+GlyphLessFont CID TrueType Identity-H yes yes yes 48 0
NZFHZN+GlyphLessFont CID TrueType Identity-H yes yes yes 45 0
NJXGBN+GlyphLessFont CID TrueType Identity-H yes yes yes 41 0
DWTFYL+GlyphLessFont CID TrueType Identity-H yes yes yes 37 0
PKYUOD+GlyphLessFont CID TrueType Identity-H yes yes yes 33 0
LGBPPA+GlyphLessFont CID TrueType Identity-H yes yes yes 29 0
ROGTHG+GlyphLessFont CID TrueType Identity-H yes yes yes 25 0
ZBKUCS+GlyphLessFont CID TrueType Identity-H yes yes yes 20 0
ZBOPFI+GlyphLessFont CID TrueType Identity-H yes yes yes 17 0
RZCJNG+GlyphLessFont CID TrueType Identity-H yes yes yes 13 0
为什么不运行这个
gs -q -o out.pdf -sDEVICE=pdfwrite -sCIDFSubstPath=/usr/share/fonts/TTF/ -sCIDFSubstFont=LiberationSans-Regular.ttf -sSUBSTFONT=LiberationSans-Regular in.pdf
使用 LiberationSans-Regular 字体生成 out.pdf?相反，pdffonts out.pdf 提供与上面的 in.pdf 相同的输出.
produce an out.pdf with LiberationSans-Regular fonts? Instead, pdffonts out.pdf gives the same output as it did for in.pdf above.
推荐答案
CIDFont 替换参数影响替换 missing CIDFonts.您无法替换嵌入的 CIDFonts - 文件中列出的所有字体都已嵌入.在一般情况下，简单地放入不同的字体/CIDFont 是不可能的.
The CIDFont substitution parameters influence substituting missing CIDFonts. You can't replace embedded CIDFonts - and all the ones listed in your file are embedded. Simply dropping in a different font/CIDFont isn't really possible, in the general case.
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