Paint Tool SAI Crack v2

PaintTool SAI Software Crack (Ver.1 / Ver.2)

Language: English | 中文

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If you want to download the latest software package, please go to the official website:

https://www.systemax.jp/en/sai/devdept.html

Supported packages

Package	Program	Notes
sai2-20241123-32bit-en / 64bit	sai2.exe	Old SAI2 — works with N patch + license
sai2-20260702b-32bit-en / 64bit	sai2.exe	New SAI2 — also re-encrypts internal RSA blob
sai-1.2.5-ful-en.exe / sai-1.2.6-Beta.3-ful-en.exe	sai.exe	SAI1 — patch N + re-encrypt SEV0 blob

Requirements

• Python — https://www.python.org/downloads
  • Prefer Python 3 → use saicrack_py3.py
  • Python 2 → use saicrack_py2.py
  • saicrack_v2.py is the same v2 logic (alias)
• Download the SAI zip / installer for your PC (64-bit recommended on 64-bit Windows)

Instructions (SAI2)

1st: Put the script and sai2.exe in the same directory

Copy saicrack_py3.py next to sai2.exe (after extracting the official zip).

2nd: Run the cracker

Open CMD or PowerShell in that folder, then run:

python saicrack_py3.py

You will be prompted to enter the System ID.

Tips:

• Right click empty space in the folder → Open in Terminal / Open CMD
• Or: cd /d "D:\path\to\sai2" then run the command above

3rd: Open SAI2 and get System ID

Open SAI2 → Other → System ID ...

This opens a pop-up with the System ID (8 hex characters).

Help:

4th: Enter the System ID

Paste the System ID shown in SAI2 into the console, then press Enter.

• Length must be 8
• Characters: 0-9 a-f A-F only
• Do not add 0x or spaces

5th: Close SAI2, then type OK

Fully exit SAI2 (make sure sai2.exe is not running).
In the console, type:

OK

Then press Enter.

6th: Finish

When you see Crack success!, press Enter to close the script if prompted.

Generated / modified files:

File	Description
license.slc	128-byte license for this System ID
sai-crack.slc	Same license (extra name for SAI1 sai-*.slc search)
sai2.exe.<timestamp>.bak	Backup of the original EXE before patch

Restart SAI2. Done.

Instructions (SAI1)

1. Extract sai.exe from sai-*-ful-en.exe (the installer contains zip data after the first PK\x03\x04 signature).
2. Put saicrack_py3.py and sai.exe in the same directory.
3. Run python saicrack_py3.py, enter System ID, close SAI, type OK.
4. Use the generated license.slc / sai-crack.slc next to sai.exe.

Example extract (Python):

python -c "from pathlib import Path; import zipfile; p=Path('sai-1.2.5-ful-en.exe'); d=p.read_bytes(); i=d.find(b'PK\x03\x04'); zipfile.ZipFile(__import__('io').BytesIO(d[i:])).extractall('sai1_extracted'); print('ok')"

What v2 does (short)

1. Builds license.slc for your System ID using a known RSA private exponent under replacement modulus N'
2. Replaces the public modulus N → N' inside the EXE
3. Re-encrypts internal RSA-wrapped data that still depends on old N (required for new SAI2 and SAI1)

Old v1 scripts only replaced N. That is not enough for sai2-20260702b.

Restore backup

copy /y sai2.exe.***********.bak sai2.exe

Script files

File	Use
saicrack_py3.py	Recommended (Python 3)
saicrack_py2.py	Python 2 / same v2 logic
saicrack_v2.py	Alias of v2

Version: 2.0.0

ATTENTION NOTICE

www.painttoolsai.cn is an unauthorized seller of SYSTEMAX products. SYSTEMAX has never authorized anyone to sell their products.

Unauthorized sellers buy official licenses and resell one license cheaply to multiple customers. This violates the license agreement.

Illegally distributed licenses may be revoked when found.

Please do not buy from unauthorized sellers.

Notice

It is recommended to download SAI from:

https://www.systemax.jp/en/sai/devdept.html

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中文说明 / Chinese README