imagemagick “CONVERT” command finer points under Ubuntu 10.4

Question

I'm struggling a little with the command line running imagemagick.

I need to convert many .jpg files to many PDF files. Each PDF has one jpg contained inside. I fount lots of tutorials on how to convert many jpg to one PDF, but this is not what I need.

Anywho, I would not mind paying a small bounty for a correct solution that I could handle.

Answer 1

I'm not sure what's tripping you up, but one way is to figure out how to convert one jpg to one pdf, then wrap that command in a bash for loop.

Convert one file

convert [convert options] file.jpg file.pdf

Put it in a loop, with quoting to handle filenames with spaces. The ${f$.jpg}.pdf construct replaces the .jpg extension with .pdf. Here's a bash script.

#!/bin/bash
# Script to convert all jpg files in current directory
# to pdf files
# Edit the convert line to include convert options ahead of "$f"

for f in *.jpg
do
convert "$f" "${f%.jpg}.pdf"
done

Put the script in the directory with the jpg files, make the script executable and run it with the command ./scriptname.

Answer 2

For processing many images, ImageMagick provides the command mogrify which would be invoked like this:

 mogrify -format pdf *.jpg

To output in another directory, you can add the -path switch.

(I see that this particular problem is already solved, but happened upon the question and thought I'd add this for future reference).