NSScreenshotMaker Switch

NSScreenshotMaker
General
Author	cheuble
Type	PC Utilities
Version	1.0.2
License	MIT License
Last Updated	2018/04/14
Links
Download
Website
Source

NSScreenshotMaker is a tool that will allow you to sign images for the Nintendo Switch. The Switch has an album function to view your screenshots, but it can't read images you put yourself on the SD card. This tool's purpose is to sign any image so the Switch can read it.

It was presented in the GBAtemp Switch Homebrew Bounty 2018 (Tools and Utilities).

User guide

Requirements:

• The Nintendo Switch capsrv screenshot HMAC secret key.
• Python3.
• PIL.
• piexif.

You might otherwise use the exe file which doesn't need those requirements (except for the key). Your antivirus may block it however.

How to use:

• Find the "Nintendo Switch capsrv screenshot HMAC secret" key (not provided for legal reasons). Either save it in a key.bin file, or pass it as an argument when running the program.
• Create an input folder, and put your images in it. Images can be all sizes and formats that PIL supports.
• Download the program and run it. It should output an SD folder. Extract its content to the root of your Switch's SD card.

Changelog

1.0.2

• Added optional arguments for input and output folders.
• Added verification for the key.
• Fixed a bug regarding the "Archive bit" for some users on Windows.

1.0.1

• Fixed a bug regarding thumbnails being too large.

1.0.0

• Initial release.

Credits

Thanks:

• SciresM for documenting how the Screenshot verification works on switchbrew, and for the key.
• s0r00t for testing.

External links

• GitHub - https://github.com/cheuble/NSScreenshotMaker
• GBAtemp - https://gbatemp.net/threads/nsscreenshotmaker.501018/