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ghostscript 笔记
| Date: | 2020-03-16 00:00:00 |
| Description: | ghostscript 使用笔记。 |
| Keywords: | ghostscript, pdf |
| Category: | engineering_technology/computer/software/document/pdf |
| Tag: | ghostscript, note, pdf |
| Link: | https://www.diewuxi.com/blog/article/77.html |
Changelog
* 2020-08-18
* Add grammer
* 2020-03-16
* Add 压缩
Grammer
gs [options] {filename 1} ... [options] {filename N} ...
Here are some basic examples. The details of how these work are described below.
To view a file:
gs -dSAFER -dBATCH document.pdf
You'll be prompted to press return between pages.
To convert a figure to an image file:
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=png16m -dGraphicsAlphaBits=4 \
-sOutputFile=tiger.png tiger.eps
To render the same image at 300 dpi:
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=png16m -r300 \
-sOutputFile=tiger_300.png tiger.eps
To render a figure in grayscale:
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pnggray -sOutputFile=figure.png figure.pdf
To rasterize a whole document:
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pgmraw -r150 \
-dTextAlphaBits=4 -sOutputFile='paper-%00d.pgm' paper.ps
There are also a number of utility scripts for common to convert a PostScript document to PDF:
ps2pdf file.ps
The output is saved as file.pdf.
压缩
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=foo-compressed.pdf foo.pdf
CompatibilityLevel 用于控制pdf 的版本,默认1.4 一般不变
PDFSETTINGS 用于控制导出文件质量:
/screen 选择类似于Acrobat Distiller“屏幕优化”设置的低分辨率输出。(生成文件最小)
/ebook 选择类似于Acrobat Distiller“电子书”设置的中等分辨率输出。
/printer 选择类似于Acrobat Distiller“打印优化”设置的输出。
/prepress 选择类似于Acrobat Distiller“印前优化”设置的输出。
/default 选择意图在各种用途中有用的输出,这可能是以较大的输出文件为代价的。
Last modified: 2020-08-18
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