Commands using gs sorted by votes

Commands using gs (23)

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Remove security limitations from PDF documents using ghostscript

Remove security from PDF document using this very simple command on Linux and OSX. You need ghostscript for this baby to work.
This is sample output - yours may be different.
47

gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=OUTPUT.pdf -c .setpdfwrite -f INPUT.pdf

deijmaster · 2009-12-14 21:30:22 42
Merge *.pdf files

Merge all pdf files in the directory into one pdf file (the out.pdf file)
This is sample output - yours may be different.
13

gs -q -sPAPERSIZE=letter -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=out.pdf `ls *.pdf`

oops66 · 2009-03-13 22:34:14 43
Optimize PDF documents
This is sample output - yours may be different.
12

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

alamati · 2010-01-26 19:00:01 29
Merge PDFs into single file
This is sample output - yours may be different.
8

gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=output.pdf input1.pdf input2.pdf ...

mariusbutuc · 2011-07-18 14:27:27 7
Extracting a range of pages from a PDF, using GhostScript

In this example we extract pages 14-17
This is sample output - yours may be different.
7

gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER -dFirstPage=14 -dLastPage=17 -sOutputFile=OUTPUT.pdf ORIGINAL.pdf

mariusbutuc · 2011-08-12 14:35:20 7
Merge several pdf files into a single file

merge a.pdf b.pdf and c.pdf and create ./out.pdf
This is sample output - yours may be different.
5

gs -q -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=out.pdf a.pdf b.pdf c.pdf

becomingGuru · 2009-06-25 19:04:28 14
split a multi-page PDF into separate files

Have to do this once per output file, because if device is 'pdfwrite', even if 'gs' sees '%d' in the OutputFile it still only creates one single output file. Embed it into a simple shell script if you want to split a document out into one file for every page.
This is sample output - yours may be different.
4

gs -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dFirstPage=2 -dLastPage=2 -sOutputFile=page2.pdf multipageinputfile.pdf

drewbenn · 2010-02-10 08:48:48 5
Optimize Xsane PDFs

Xsane produces PDFs that are too large - particularly multipage PDFs. This command compresses them. If you do not use A4, remove the -sPAPERSIZE flag.
This is sample output - yours may be different.
3

gs -q -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=test.pdf multipageproject.pdf

iain · 2009-03-24 17:14:46 16
convert pdf into multiple png files

syntax for resolution is: (see "man gs" for further informations) -rnumber -rnumber1xnumber2 Show Sample Output
This is sample output - yours may be different.
```
GPL Ghostscript 8.70 (2009-07-31)
Copyright (C) 2009 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 3.
Page 1
>>showpage, press <return> to continue<<

Page 2

>>showpage, press <return> to continue<<
Page 3

>>showpage, press <return> to continue<<
```
2

gs -sDEVICE=pngalpha -sOutputFile=<filename>%d.png -r<resolution> <pdffile>

angleto · 2010-03-30 09:51:10 4
Reduce PDF Filesize
This is sample output - yours may be different.
2

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -dQUIET -dColorImageResolution=600 -dMonoImageResolution=600 -sOutputFile=output.pdf input.pdf

alikhalil · 2019-03-13 11:43:52 46
Remove embedded fonts from a pdf.

It's sometimes useful to strip the embedded fonts from a pdf, for importing into something like Inkscape. Be warned, this will increase the size of a pdf substantially. I tried this with only gs writing with -sDEVICE=pdfwrite but it doesn't seem to work, so I just pipe postscript output to ps2pdf for the same effect.
This is sample output - yours may be different.
1

gs -sDEVICE=pswrite -sOutputFile=- -q -dNOPAUSE With-Fonts.pdf -c quit | ps2pdf - > No-Fonts.pdf

qubyte · 2009-03-25 03:46:00 14
Convert PDF to JPEG using Ghostscript

Converting your PDF file to JPEG images. You can set resolution by -r option (default: 72dpi).
This is sample output - yours may be different.
1

gs -dNOPAUSE -sDEVICE=jpeg -r144 -sOutputFile=p%03d.jpg file.pdf

auriza · 2010-01-02 16:17:39 85
Merge PDFs with Ghostscript wrapped in a function

This is an expansion on a previous entry, which I've wrapped in a function and placed in my profile. The "$@" is a positional parameter, much like "$*", but the parameters are passed on intact, without interpretation or expansion; so you can simply call the function like this: mergepdf * This will output a merged PDF of all PDFs in the current directory. Alternatively, you can simply list them like so: mergepdf 00.pdf 01.pdf 02.pdf ... N.B. Passing a wildcard will merge all PDFs in the current directory in name order, e.g. 00.pdf 01.pdf aa.pdf ab.pdf
This is sample output - yours may be different.
1

mergepdf() { gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=merged.pdf "$@" }

peterRepeater · 2011-07-28 11:12:15 4
Reduce PDF size
This is sample output - yours may be different.
1

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

gustavorobertux · 2012-02-20 13:29:37 10
Convert PDFLaTeX PDF to Illustrator-usable EPS

Use this to turn a page with snippets of equations into vector paths that Adobe Illustrator can handle without choking on font embedding and substitution issues. Good for keeping fonts consistent when labeling charts and diagrams. Also good for embedding formulas into diagrams.
This is sample output - yours may be different.
0

gs -dNOCACHE -dNOPAUSE -dBATCH -dSAFER -sDEVICE=epswrite -dEPSCrop -sOutputFile=out.eps in.pdf

Boojum · 2009-02-05 20:06:40 16
Merge various PDF files
This is sample output - yours may be different.
0

gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=output.pdf -dBATCH first.pdf second.pdf

binfalse · 2010-08-31 22:39:50 5
Convert a directory of pdfs into scaled down pngs

Using ghostscript instead of imagemagick to convert pdfs into pngs. It keeps pngs with pdfs
This is sample output - yours may be different.
0

shopt -s nullglob; for i in $(find "Your/file/system" -name "*.pdf"); do e="$(dirname $i)/$(basename $i '.pdf').png"; gs -sDEVICE=png16m -q -dPDFFitPage -g492x380 -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -dNOSUBSTDEVICECOLORS -o $e $i; done

unixmonkey15302 · 2010-12-17 13:30:54 6
Concating pdf files

I found this on http://fixnum.org/blog/2007/concat_pdfs_with_ghostscript/ so it's not my creation, but I think it's very useful and a good addition to this codebase. Show Sample Output
This is sample output - yours may be different.
```
...
```
0

gs -q -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=out.pdf 1.pdf 2.pdf 3.pdf 4.pdf

jakab922 · 2011-04-14 09:13:07 5
Compress PDF

Useful if you want to reduce PDF file size using command line by ghostscript.
This is sample output - yours may be different.
0

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

DavideRiboli · 2012-02-29 21:30:20 4
convert PDF manga to Image's

PL Ghostscript 9.10 (2013-08-30) Copyright (C) 2013 Artifex Software, Inc. All rights reserved. This software comes with NO WARRANTY: see the file PUBLIC for details. Processing pages 1 through 187. Page 1 Page 2 Loading NimbusSanL-Regu font from /usr/share/fonts/type1/gsfonts/n019003l.pfb... 3945460 2352058 3450608 1840435 3 done. Page 3 Page 4 Page 5 Page 6
This is sample output - yours may be different.
0

gs -dNOPAUSE -dBATCH -sDEVICE=png16m -sOutputFile=blood%d.png -r700x600 out.pdf

dbiesecke · 2015-07-23 18:10:33 19
Mass convert Manga PDF's to Images
This is sample output - yours may be different.
0

for f in *.pdf; do gs -dNOPAUSE -dBATCH -sDEVICE=png16m -sOutputFile="${f%.pdf}/${f%.pdf}%d.png" -r700x600 "$f" ;done

dbiesecke · 2015-07-23 18:27:52 9
Merge only certain pdfs in a directory
This is sample output - yours may be different.
-1

gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=merged.pdf -dBATCH `ls | grep foo`

Arasithil · 2014-09-19 16:00:32 8
Remove password from any pdf in current or sub directories

doesnt require knowing the password to pdf Show Sample Output
This is sample output - yours may be different.
```
for z in */*.pdf; subdirectories
for z in *.pdf;  current directory.. etc
```
-3

for z in */*.pdf; do gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile="$z new" -c .setpdfwrite -f "$z" mv "$z new" "$z"; done

splaer · 2010-10-21 16:41:37 7

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execute a command in case of success or execute a command in case of failure

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

list block devices

Shows all block devices in a tree with descruptions of what they are.

macOS: Save disk space by moving apps to external drives

Because Mac app bundles contain everything in one place, it makes running them from anywhere, including from a device such as a USB flash drive or external HDD, possible. So if your Mac has a mere 256GB of storage (as mine does), you can free up large quantities of disk space by storing apps like, say, Xcode on external devices.

Use bash history with process substitution

Bash has a great history system of its commands accessed by the ! built-in history expansion operator (documented elsewhere on this site or on the web). You can combine the ! operator inside the process redirection

Hardlink all identical files in the current directory (regain some disk space)

Meaning of switches (see man page too): v verbose p ignore mode (permissions) o ignore owner, group t ignore time of modification Disadvantage: If you modify any linked file, this will propagate to all other files which occupy the same space.

get diskusage of files modified during the last n days

get diskusage of files (in this case logfiles in /var/log) modified during the last n days: $ sudo find /var/log/ -mtime -n -type f | xargs du -ch n -> last modified n*24 hours ago Numeric arguments can be specified as +n for greater than n, -n for less than n, n for exactly n. => so 7*24 hours (about 7 days) is -7 $ sudo find /var/log/ -mtime -7 -type f | xargs du -ch | tail -n1

SSH Copy ed25519 key into your host

Position the cursor under the current directory line

In case you're like me and like your commands to start on clean lines, especially when you're deep into a 10-level directory tree. This can be added to .bashrc.

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Commands using gs (23)

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