Converting pdf to jpg in multiple directories? Post: 302755467

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Top Forums UNIX for Dummies Questions & Answers Converting pdf to jpg in multiple directories? Post 302755467 by pen on Sunday 13th of January 2013 09:23:00 AM

01-13-2013

Registered User

Quote:

Originally Posted by martinsmith

Hi!

On my Ubuntu I have thousands of files in a couple hundred directories. I'm trying to convert the pdf's to jpg's.

I used this command in terminal:
for fname in *.pdf; do convert $fname ${fname%.pdf}.jpg; done

It works great but the problem is I have to run this in terminal for each folder/directory so it's time consuming.

Is it possible to covert all the pdf's in the sub directories from the root directory at once in terminal?

Thanks for your help

Hi,

use find - you can traverse your directories with it, and even start your conversion per each file found. There are more efficient methods, but this depends on the amount of the files you have. Have a look at the manual page of find(1), but one way to accomplish your target would be something like:

Code:

find the_root_directory_of_pdfs -name \*.pdf -exec convert \{\} \{\}.jpg \;

The {} marks the filename found, and because of the shell the braces have to be escaped, as well as the command-ending semicolon.

There are also other, more CPU-friendly methods, but this may serve as a one-time solution.

BR,

pen

EDIT: Umm, I just noticed you want the change the filename extention for good - my solution leaves file names as foo.jpg.pdf... With find, this would work:

Code:

find root_of_pdfs -name \*.pdf | while read fname; do convert $fname ${fname%.pdf}.jpg; done

Last edited by pen; 01-13-2013 at 10:30 AM.. Reason: See section EDIT...

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ps2pdf14

PS2PDF(1)							    Ghostscript 							 PS2PDF(1)

NAME

       ps2pdf - Convert PostScript to PDF using ghostscript
       ps2pdf12 - Convert PostScript to PDF 1.2 (Acrobat 3-and-later compatible) using ghostscript
       ps2pdf13 - Convert PostScript to PDF 1.3 (Acrobat 4-and-later compatible) using ghostscript
       ps2pdf14 - Convert PostScript to PDF 1.4 (Acrobat 5-and-later compatible) using ghostscript

SYNOPSIS

       ps2pdf  [options...] {input.[e]ps|-} [output.pdf|-]
       ps2pdf12  [options...] {input.[e]ps|-} [output.pdf|-]
       ps2pdf13  [options...] {input.[e]ps|-} [output.pdf|-]
       ps2pdf14  [options...] {input.[e]ps|-} [output.pdf|-]

DESCRIPTION

       The ps2pdf scripts are work-alikes for nearly all the functionality (but not the user interface) of Adobe's Acrobat(TM) Distiller(TM) prod-
       uct: they convert PostScript files to Portable Document Format (PDF) files.

       If the output filename is not specified, the output is placed in a file of the same name with a '.pdf' extension  in  the  current  working
       directory.  Either  the	input filename or the output filename can be '-' to request reading from stdin or writing to stdout, respectively,
       when used as a filter.

       The three scripts differ as follows:

       -      ps2pdf12 will always produce PDF 1.2 output (Acrobat 3-and-later compatible).

       -      ps2pdf13 will always produce PDF 1.3 output (Acrobat 4-and-later compatible).

       -      ps2pdf14 will always produce PDF 1.4 output (Acrobat 5-and-later compatible).

       -      ps2pdf per se currently produces PDF 1.4 output.	However, this may change in the future. If you care about the compatibility  level
	      of the output, use ps2pdf12, ps2pdf13 or ps2pdf14, or use the -dCompatibility=1.x switch in the command line.

       There  are  some limitations in ps2pdf's conversion. See the HTML documentation for more information. A large number of Adobe Distiller(TM)
       parameters which can be used to control the conversion are also documented there, including instructions for  generating  PDF/X	and  PDF/A
       documents.

OPTIONS

       The ps2pdf scripts use the same options as gs(1).

EXAMPLES

       Converting a figure.ps to figure.pdf:

	      ps2pdf figure.ps

       A conversion with more specifics:

	      ps2pdf -dPDFSETTINGS=/prepress figure.ps proof.pdf

       Converting as part of a pipe:

	      make_report.pl -t ps | ps2pdf -dCompatibility=1.3 - - | lpr

SEE ALSO

       gs(1), ps2pdfwr(1),
       Ps2pdf.htm in the Ghostscript documentation

BUGS

       See http://bugs.ghostscript.com/ and the Usenet news group comp.lang.postscript.

VERSION

       This document was last revised for Ghostscript version 9.07.

AUTHOR

       Artifex Software, Inc. are the primary maintainers of Ghostscript.  This manpage by George Ferguson.

9.07								 12 February 2013							 PS2PDF(1)

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