PdfToImage

What does it do?

PdfToImage simply extracts .jpg from within a pdf

Requirements

• java
• only tested on linux

How do I use it?

You can run it for a single pdf file from the terminal:

$java PdfToImage </path/to/file.pdf>

There is also a python (3.5+, untested on other versions) example that can be used with the .class file. Simply download extract_image.py and PdfToImage.class and copy to the directory containing single or multiple .pdf files. From the terminal run:

python extract_images.py

A 4mb file with 11 A4 images takes approximately 10 sec to extract.

You can also complile the java program from with: javac PdfToImage.java

How does it work?

The extract_image.py simply reads through its containing directory, searching for pdf files. It then runs the java class PdfToImage passing in pdf files as commandline varargs. Python creates a new directory for each pdf and the java program extracts the image, saving it to the new directory.

Limitations

Theoretically the program can handle pdf files up to 2Gb, this has not been tested for lack of such a file. Such a file could require upwards of 4Gb of ram to run.

Todo

• potentially implement completely in python
• add some more checks to the java program
• multiprocess / thread