This is a cool windows xp trick i found out by which you can hide your files under a picture.


Follow these steps -->

1. First select the files you want to hide.

2. Right-click the files and select "Add to archive" i.e compress the files to zip or rar.

3. Place the compressed file and the picture in which files will e hidden in E:\ or D:\ or C:\ , this does'nt play any role but will be easier to find the files.

4. Now go to Start->Run or simply press Win+R , type cmd ,this will open command prompt.

5. Now go to the directory in which you placed the files in my case it is E: so i typed E:

6. Now we are in E: drive so type the below code , here my file names are test.jpg and test1.zip

<strong>copy /b "test.jpg"+'test1.zip" new.jpg </strong>

Thats it you are done the above code has created a file with name new.jpg , when you double-click it the picture will open but when you right-click it and select open with -> winrar your hidden files will be seen

Copy is a DOS command which can copy , create , and append files.
The "+" is an operator which joins two files.
For more info just type "help copy" in command prompt.
Here we have created a picture but you can create any file just take care of file extensions.
</font>

Dani AI

Generated

Good summary and useful demo from — this thread shows the simple trick of tacking data onto an image so the picture still displays while the appended bytes remain recoverable. rightly points out the appended data can be obvious if you view the file as text, and is correct to call this an instance of hiding data. A few practical points and safer alternatives that weren't covered:

This method is plain concatenation, not true steganography or encryption. Concatenated archives leave clear signatures (for example ZIP files start with the bytes PK 03 04; RAR has a readable header; JPEGs end with the marker 0xFF 0xD9). Detection is straightforward with a hex editor or simple tools: look for archive magic bytes or an unusually large image file for its dimensions. On *nix you can find the ZIP signature offset like this:

grep -aob $'\x50\x4B\x03\x04' carrier.jpg

If you need secrecy rather than convenience, encrypt first and then, if desired, embed with a steganography tool. Example workflow (Windows/Linux): create an encrypted archive with 7‑Zip, then embed with a stego tool such as steghide or OpenStego.

7z a -mhe=on -pYourPass secret.7z files/
steghide embed -cf carrier.jpg -ef secret.7z -p YourPass

Notes and cautions: encrypting is essential if the content must be confidential — simple concatenation offers no cryptographic protection. Many image hosts (social sites, cloud storage) recompress or strip files and will destroy embedded data; thumbnails and server-side processing can remove hidden payloads. Also be mindful of legal and policy boundaries: hiding data can trigger scrutiny. If the goal is recoverability or modest obfuscation for personal use, the original trick works; for real secrecy, combine strong encryption with vetted steganography tools and keep backups of the original carrier.

A bit of fun.. :)
True, it does not have to be a picture, any file will do. You can, for example, hide a compressed txt file in another txt file:
copy /b viztext.txt+hiddentext.rar
-the second is appended to the first. But on opening viztext.txt you will see the RAR gibberish, so it's not exactly hidden, the gibberish being tagged as RAR. Your picture idea is best.

how to find encrypted document

means what type of encrypted doc

google for steganography. this technique is called steganography. U think its a trick, but there r so many other encryptors also to do this trick. And btw, only way to find is to check the size and the headers

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.