How to convert PDF documents into images files (JPEG, GIF, BMP, or any format) in order to exploit them.
This article aims to answer this problem with free softwares.
This article describes the procedure under Windows XP. However, it can easily be adapted to other operating systems (Windows98, Windows 7, Linux, MacOS X, etc. ...), as most of the softwares used are available for many platforms.
Gimp is a free, cross platform software for creating/editing images.
Install GhostScript leaving the default directory (recommended for further manipulations).
Adding system variables
Start> Settings> Control Panel
Performance and Maintenance> View basic information about your computer system OR
Advanced tab, then Environment Variables
Click the New button.
Variable Name: Enter GS_PROG
Variable Value: Enter C:\Program Files\gs\gs8.14\bin\gswin32.exe (adapt according to the installation folder of GhostScript)
Click on OK
Click the New button
Variable Name: Type GS_LIB
Variable value: type C:\Program Files\gs\gs8.14\lib (adapt according to your installation folder GhostScript, the version number 8.14 will change depending on your version of Ghostscript)
Click on OK
Click OK in both of the windows left open.
Optionally, restart the computer
Open Gimp (Start, (All) Programs,The Gimp.
Open PDF file (File> Open> Select File> OK).
Adjust the options if you wish.
File> Save a copy.
Choose a location Enter the desired file name and add the necessary extension (. Jpg,. Bmp,. Gif, etc ...) or choose the type of files in the list.
OK, change options if necessary (compression, etc. ...) and validate again.
If you have the following error message:
The opening of "C:\Documents and Settings\Owner\My Documents\ my_file.pdf" failed: Unable to open "C:\Documents and Settings\Owner\My Documents\ my_file.pdf" for reading: Failed to load document from data (error 1) '
Make sure you have installed Ghostscript, you have successfully created the new environment variables and the paths you have given for these variables are correct.
Right-clicking on a PDF and selection "open with" > Gimp systematically lead to this error.