Read: Encrypt Files with File Encryption
Text to Color is a portable tool. Download it and run on your system. It has a simple interface with a big text area and few buttons below it. In the text area, either you can manually type a text or upload text from a text file by using load text button.
Add text in the text area by typing or loading from text file. Once you are done, click on Encode text button. And you will see an image at the bottom side. This is the encode text in the image form.
To save this image, click on Save image button. And your text is now saved in encoded form.
To read the text encoded in the image, click on Load Image button and browser the saved PNG image of encoded text. And then click on Decode image. It will ask you the location to write the original text in a text file. Enter the file name and then click on save. Original text will be written in the text file.