无后缀文件安装

[F2Sky]

http://www.willus.com/k2pdfopt/download/

在这个页面下载的 mac OSX 安装文件， 64 位的，是没有后缀的，添加 .pkg 、.iso 、.dmg ，均提示无法安装，这个安装文件到底是什么格式的啊？怎么安装啊？？？

[adrianzhang]

打开终端，用 file 看

[langmoe]

k2pdfopt v2.41 (w/MuPDF,DjVuLibre,OCR) (c) 2017, GPLv3, http://willus.com
Compiled Feb 25 2017 with Gnu C v6.2.0 for OS/X on x64.

a. Autostraighten (-as) n. Native PDF output (-n)
b. Bitmap type (-jpg,-png,-bpc) o. Output name (-o)
bp. Break pages (-bp,-f2p) oc. OCR (-ocr,-ocrvis,...)
c. Color/Negative output (-c, -neg) om. Output margins (-om)
co. Column detection (-col,-ch,...) p. Page range (-p)
cs. Contrast/Sharpen (-cmax,-g,-s,-wt) pd. Padding/Marking (-p[lrbt],-mc)
d. Device selection (-dev,-h,-w,-dpi) r. Right-to-left page scans (-r)
ds. Document scale factor (-ds) rt. Rotate source page (-sr)
f. Fit to single column (-fc) s. Special (-de,-evl,-gs)
gt. Gap thresholds (-gt...) sm. Show marked source (-sm)
j. Justification (-j) u. Usage (command line opts)
l. Landscape mode (-ls) v. Vertical spacing (-vb,-vs)
m. Margin to ignore (-m) w. Wrap/Reflow text (-wrap,-ws)
mo. Mode (-mode) x. Exit on completion (-x)

Selected options: (none)

Enter option above (h=help, q=quit):

是命令行用的可执行文件

[F2Sky]

我去，代码都不会码的怎么办。。。

[Tink]

这是个二进制文件

[ynyounuo]

移动到 PATH 下然后给 x 权限就好