sed syntax for binary wrapped eps files gs,epstopdf, illustrator

tnrooster · 10-08-2010, 05:43 PM

I'm having a problem with sed syntax.

So far I can sed the HiResBoundingBox to capture the images I want and output to pdf.

But now ever so often I get an illustrator file that has hexadecimal values at the start and end of the file.

Imagemagick powers through this and still creates the rastorized previews I want but the gs dies using the epstopdf script to output the vector files.

If I hand remove the hex on both ends of the file, both functions work fine and the file can still be managed in illustrator but if I resave it the hex comes back.

No idea where it comes from or why. It only happens on a few files plus it seems to serve no purpose as the files work perfectly without it.

I can not get the sed statement to work. I've tried a blue million variations with no luck. Copied some that I found, same result.

Start of bad eps file:

Quote:

ÅÐÓÆ ^@^@^@5O
^@^@^@^@^@^@^@^@^@UO
^@ím^K^@ÿÿ^@^@%!PS-Adobe-3.1 EPSF-3.0^M

The way I need it to look:

Quote:

%!PS-Adobe-3.1 EPSF-3.0^M

End of file the same:

Quote:

%AI9_PrivateDataEnd^M
@ @

just needs to be :

Quote:

%AI9_PrivateDataEnd^M

Tried

Quote:

sed -n '/%/,$p' < = blank file

sed -i 's/%/,$!d/g' = same

sed 's/%/,$!d/g' = same

sed 's/%/,$!d' = same

I can't seem to find any proper reference to this.

mario.almeida · 10-09-2010, 03:34 PM

Hi,

May be something like this you can try.

LN1=$(grep -m 1 -n 'PS-Adobe-[0-9]' filename | awk -F: '{ print $1 }')

LN2=$(sed -n '/AI9_PrivateDataEnd/=' filename)

sed -i "$LN1,${LN2}!d" filename

sed -i '1s/.*$%!PS-Adobe*$/\1/' filename