text_blind_watermark

Put message(blind watermark) into a text. so that the message is invisible, and the changes of the text are not perceptible.

• Video demo：https://www.bilibili.com/video/BV1m3411s7kT
• Online demo(from old version, for demo only): https://www.guofei.site/pictures_for_blog/app/text_watermark/v1.html
• 中文 readme README_cn.md
• Source code: https://github.com/guofei9987/text_blind_watermark
• Rust Version: https://github.com/guofei9987/hidden_watermark

Can be used in

• Wechat
• dingding
• zhihu.com
• ...

How to Use

install

pip install text_blind_watermark

embed message into text:

from text_blind_watermark import TextBlindWatermark

password = b"p@ssw0rd"
watermark = b"This is watermark"
original_text_file = 'files/file_txt.txt'
file_with_watermark = 'files/file_txt_with_watermark.txt'

with open(original_text_file, 'r') as f:
    text = f.read()

twm = TextBlindWatermark(pwd=password)

# add watermark into the text
text_with_wm = twm.add_wm_rnd(text=text, wm=watermark)

# write into a new file
with open(file_with_watermark, 'w') as f:
    f.write(text_with_wm)

read and extract watermark

from text_blind_watermark import TextBlindWatermark

password = b"p@ssw0rd"
file_with_watermark = 'files/file_txt_with_watermark.txt'

with open(file_with_watermark, 'r') as f:
    text_with_wm_new = f.read()

twm = TextBlindWatermark(pwd=password)
watermark_extract = twm.extract(text_with_wm_new)
print(watermark_extract)

watermark extracted： This is a watermark

Related Project

HideInfo：https://github.com/guofei9987/HideInfo