This article explains how to convert PPT/ Impress (Libreoffice) presentation file(s) to JPG Image(s) in a *NIX (Ubuntu) environment. Presentation file can be made up of several (N) slides which after final conversion yields one JPG image per slide (N JPG files).
Prerequisites software:
- libreoffice
- pdftoppm
Conversion Process:
PPT ---> PDF ----> JPG
(N-slides) (N-pages) ----> JPG
.....
----> JPG (N-JPG files, one per slide)
Steps to Convert:
1. Convert PPT file to PDF
$ libreoffice --convert-to pdf "fileName.ppt" --outdir "outputFolderName"
(Note: For the given input file name fileName.ppt, this script creates an output file fileName.pdf in the specified outdir.)
2. Convert PDF to JPG
$ pdftoppm -jpeg -r 200 "outputFolderName/fileName.pdf" "imagePrefix_"
(Note: Image prefix is a text that can be added to the image file names.)
Finally, these steps are put to a shell script to allow it to convert all Presentations newly added to a folder inside called "PRESENTATIONS/Active/" in the user's Home folder.
