Cropping Margins Existing Template PDF with PDFTK

The key of the re-centering or re-margining is the /Mediabox reference... we have to pan the original template in PDF... ON THE UNCOMPRESSED PDF... The media box [0,0,612,792]

• Move the box up: [0 -70 612 722]
• Move the box down: [0 70 612 862]
• Move the box left: [70 0 682 792]
• Move the box right: [-70 0 542 792]

 1273  pdftk S89E.pdf output S89E.unc.pdf uncompress
 1274  sed 's/MediaBox \[0 0 612 792\]/MediaBox \[-70 0 542 812\]/g'< S89E.unc.pdf > S89.resized.pdf

Examples

 1301  sed 's/MediaBox \[0 0 612 792\]/MediaBox \[0 70 612 862\]/g'< S89E.unc.pdf > S89.resized.pdf
 1304  sed 's/MediaBox \[0 0 612 792\]/MediaBox \[0 -70 612 722\]/g'< S89E.unc.pdf > S89.resized.pdf
 1305  sed 's/MediaBox \[0 0 612 792\]/MediaBox \[70 0 682 792\]/g'< S89E.unc.pdf > S89.resized.pdf
 1306  sed 's/MediaBox \[0 0 612 792\]/MediaBox \[-70 0 542 792\]/g'< S89E.unc.pdf > S89.resized.pdf

sed: how do I grep from line X until EOF?

If I have a rolling logfile with multiple lines per log record how do I print from line X until EOF?

computer:~ me$ sed -n "57450,\$p" pf/app/logs/server/trace.log

SED: print only lines between x and y...

Print only lines between certain line numbers... I'm sick of looking this up every two seconds... so I plagiarize and put it in my own collection.... which I know how to find :-)

# print section of file based on line numbers (lines 8-12, inclusive) 
sed -n '8,12p' # method 1 
sed '8,12!d' # method 2

Example that I needed this for: grepping lines 39000 - 40000 where an error was reported.

computer:tmp user$ ssh user@host 'cd  /QIBM/UserData/WebSphere/AppServer/V61/ND/profiles/dmgrapp/logs/dmgr && sed -n '39000,40000p' systemout.log'

Remove Non Printable Characters with sed

Took a while to find this and the exact syntax but here its, removing all non ascii chars.

$ sed 's/[^ -~]//g' < B2.java > BeanUtils.java 

sed delete empty lines

sed '/^dr.*$/d;/^$/d'