Angecryption is an encryption or an decryption result from a file to create an other file with the same / or not type. This cryptography approach was created by two researchers Ange Albertini and Axelle Apvrille.
This tool allows to change the format (pdf, png, jpg ..) with an encryption / decryption by block with AES.
git clone https://github.com/ISISTM/Angecryption
cd Angecryption
pip3 install -r requirements.txt
python3 angecryption.py -f input.png -k [KEY] -i [IV] -o flag