画像中にファイルを隠すアプリ for PC

"App that hides files in images" manual


Thank you for using the "App that hides files in images".

This app is
Arbitrarily multiple files you want to hide in the pixel information of the image file
Free software that hides.

Files that are not very important and are not highly confidential
To some extent, prevent it from being viewed and used by other people,

Files that are filtered and caught in normal email exchange
To hide in an image and exchange it as an image

File hiding / camouflage, app.

※still,
The main purpose of this app is to hide the file in the image.
At that time, it also has a function to encrypt and conceal the file, but it is only an auxiliary one.
Possibly, it can be decrypted and decrypted.

Therefore, if stronger encryption is required,
Separately encrypt the zip file with a password in advance, and then
Please use this software to hide it in the image. If you do so, you will be able to conceal it more firmly.

Also, the image output by embedding the file with this software is
Never process it.
If you process it, the information of the embedded file will be lost.

Also, if you want to hide larger files
Please use the Windows version of the software.
https://www.vector.co.jp/soft/winnt/util/se491721.html
Also, if you use the Android compatible method of this software
Files can be embedded / extracted from each other.

* If you get an error saying "Initial setting failed" at startup, please grant "File read" and "File write" permissions to this app from [Instant Apps] in [Google] of the settings.

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◆ How to embed in an image:


☆ 1. Only at the first startup
"Allow" "Access to photos, media and files in your device".


☆ 2. After allowing, tap the "Restart app" button
Please restart the app.

* In addition, when the operation of the application is unstable,
At the first startup, close the app from the "x" button at the top right of the screen,
It may be stable when you start the app again.


☆ 3.2 When starting from the second time onward,
Since it will be the following main screen

After choosing how to embed in the image
Tap "Embed file in image".

◎ How to embed in an image
・ "4: 1 [embedding depth 1]" =
Embed 1/2 byte of file information for each pixel of image color information.
Since the color information of the original image is prioritized, there is little deterioration of the original image.
The size of the file that can be embedded is half the product of the width x height of the image.

・ "2: 1 [embedding depth 2]" =
Embed 1 byte of file information for each pixel of image color information.
Since the amount of information that can be embedded in the file is prioritized, the deterioration of the image from the beginning is large.
The size of the file that can be embedded is the product of the width of the image x the height.


◎ Automatically adjusts the image size according to the file size to be embedded
= If checked, the image of the embedding destination will be displayed with the same aspect ratio.
After resizing to the file size specified for embedding
Embed the file.
This will shorten the embedding process time.


☆ 4. From the dialog
From now on, select the image you want to embed data in.

* The size that can be embedded is the product of the width of the image x the height.
* The larger the image, the larger the size of the file that can be embedded.
If one side exceeds 2000px with a maximum of 2000px,
One side is automatically reduced to a size of 2000px.


☆ 5. A confirmation dialog is displayed
Since the file size that can be embedded is displayed
Please remember and tap "OK".

* The upper limit displayed here is a guide.
In the next item, I had a little extra size
Please select so that it is the total value.


☆ 5. A file selection dialog will be displayed.
Any file you want to embed in the image from now on
Within the range that does not exceed the size of the upper limit displayed earlier
Please select one or more.

* Up to 50 files can be embedded at one time.


☆ 6. When restoring the file embedded in the image
Specify the required password using single-byte alphanumeric characters and symbols.
Enter the same password twice to prevent mistakes
Tap "OK".

* The password should be a character string of up to 50 characters.


☆ 7. Of the embedded image file
Specify the file name.

* If there is a file with the same name, a number will be added at the end.
It is designed to avoid overwriting as it is saved under a different name.
* The file name should be a character string of up to 50 characters.


☆ 8. If you tap the "OK" button after entering the file name,
The embedding process begins.


☆ 9. After the embedding process is completed
The embedded image opens.

* Be sure to do it before actual operation or exchange.
In "How to retrieve embedded files",
Make sure that the embedded file can be retrieved normally.
* Never process the created image.
The file information embedded inside will be lost due to processing.
Also, when posting to SNS etc.
Processing is often included.


☆ 10. When viewing or sharing files
Tap the "File operation screen" button on the main screen.

On the file operation screen, in the displayed list,
After tapping and selecting the file you want to handle,
You can perform each operation by pressing the "Open", "Share", and "Delete" buttons.

* The file is specified to be output to the "TageSP" folder in the DCIM folder of the main unit.

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◆ How to extract the embedded file from the image:

☆ 1. On the main screen
Tap "Eject embedded file".

* Files of unknown origin from strangers
Do not perform this retrieval process.


☆ 2. In the confirmation dialog
Tap "OK".


☆ 3. The file is embedded in this app
Please select one image file.


☆ 4. Enter the password required for retrieval
Tap "OK".


☆ 5. The extraction process starts.

* Files are under the "Tage SP" folder in the DCIM folder of the main unit.
A new folder with the same name as the embedded first file name is created
It is a specification that is output there.


☆ 6. When the removal process is complete,
If the extracted file is a single file, the file will be opened.
If you have taken out more than one
The "File operation screen" of the extraction destination is displayed.

* If there is no app that supports the embedded file format,
Since the file will not open after extracting the file,
Please open it separately with a filer application.

* When operating multiple files or when there is no corresponding application,
Please use Filer Abri separately.
* Tap the "Open" button after selecting a folder to open the inside of that folder.
* Folders cannot be "shared".
* Deleting a folder may take some time if there are many items in the folder.


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◆ Others:

★ 1. Privacy policy → Open the privacy policy web page of this app.
https://oyk3865b.blog.fc2.com/blog-entry-3702.html


★ 2. Even after uninstalling this software, the files will remain in the TageSP folder in the DCIM folder. I also use other TageSP-produced apps in common, but if no other TageSP-made apps are installed, delete the TageSP folder in the DCIM folder with the filer after uninstalling.


★ 3. The author is not responsible for any damage caused by this app. Please note before use.
Please note that we cannot guarantee file damage caused by this software before using it.

We have not investigated in what kind of environment this app works or does not work.
Depending on the environment, the application cannot be installed,
The function stops. It may not be available. Please note before use.

Also, if you have a "large size" image or a large number of images,
The app may freeze due to lack of machine power. Please be careful before use.

The author has no responsibility whatsoever if something goes wrong.
We cannot respond to requests or opinions that exceed the ability of the author. Please forgive me in advance.