RCT Certificate Tools

Download the Android app for scanning names lists and the desktop program for printing certificates. This page is intended for RCT internal use only.

Before installing These tools are provided directly by WebMagick for RCT. If Android or Windows shows a security warning, confirm that you downloaded the file from rct.webmagick.eu before continuing.

Simple daily use

Open the Android app, choose the tour, scan the signed names list, check the names, then send the names by email or print them.

Android App

Use the Android app to scan waiver/name lists, review recognized names, and print certificates or send the names by email. APK means Android installation file. This file installs the app on the phone.

Download Android APK v1.0.2
File: rct-names-list-1.0.2.apk

Older version: Download Android APK v1.0.1

Install instructions

  1. Download the APK on the Android phone.
  2. Open the downloaded file.
  3. If Android blocks the installation, allow installation from this browser or file manager.
  4. Tap Install.
  5. Open the app after installation.

First use

  1. When the app opens for the first time, the App Settings page will open automatically.
  2. Enter the Gemini API key provided during setup, or scan the key QR code from the offline transfer tool.
  3. Save the key.
  4. Start a tour and scan the names list pages.
  5. Review the names before sending or printing.

Desktop Printing Program

Use the Windows desktop program to print certificates on the connected certificate printer. Use this as a backup if direct printing from the Android app does not work.

Download Desktop App
File: certificate-print-program-v1.1.05.zip

Install instructions

  1. Download the ZIP file on the Windows computer used for printing.
  2. Right-click the ZIP file and choose Extract All.
  3. Open the extracted folder.
  4. Run the certificate printing program: "Install Certificate Print Program.bat".
  5. If Windows SmartScreen appears, choose More info and then Run anyway, but only if the file was downloaded from this page.

Printing instructions

  1. Make sure the printer is connected and turned on.
  2. Open the desktop printing program by double-clicking Certificate Print Program on the Desktop.
  3. Write names separated by Enter (new line) or paste them from the email sent from the android app.
  4. Check that the correct printer is selected.
  5. Print the certificates.

Recommended Android Phone/Tablet Requirements

The Android app does not need an expensive phone/tablet. It should be a simple, reliable office phone/tablet with a good enough camera, stable Wi-Fi, and enough memory to run the camera, app, Gemini upload, and printing without becoming slow.

Minimum

Will probably work

Android 10 or newer, 4 GB RAM, 64 GB storage, autofocus camera, Wi-Fi, Google Play Store.

Recommended

Best balance

Android 13 or newer, 4 GB RAM or more, 128 GB storage, autofocus camera, Wi-Fi, Google Play Store.

Avoid

2 GB RAM phones/tablets, Android Go phones, phones/tablets without Google Play Store, or very unknown low-cost brands.

Before buying, check this

  1. RAM is 4 GB minimum.
  2. Storage is 64 GB minimum, preferably 128 GB.
  3. Android version is Android 10 minimum, preferably Android 13 or newer.
  4. The phone/tablet has Google Play Store.
  5. The main camera has autofocus.
  6. The phone is not Android Go.
Why not the cheapest phone/tablet? Cheap 2 GB RAM phones/tablets, especially Android Go phones, can become slow or unreliable when using the camera and printing. That is why 4 GB RAM and 64/128 GB storage are recommended.

Gemini API Key QR Transfer

Use this offline HTML tool when the Gemini API key is created on a computer and needs to be copied to the Android app without typing the long key manually.

Download API Key QR Tool
File: gemini-api-key-qr-transfer.html

How to use

  1. Download this HTML file on the computer where Google AI Studio is open.
  2. Open the downloaded HTML file. It works offline and does not upload the API key anywhere.
  3. Copy the Gemini API key from Google AI Studio and paste it into the offline page.
  4. Click Show QR Code.
  5. Open the Android app settings and scan the QR code to save the key on the phone.
  6. After scanning, click Clear in the offline page.

Mobile App Demo

Watch this short video to see how the Android app is used to scan names lists, review names, and prepare certificates.

If the video does not play, open or download the video here.

Recommended workflow

  1. Use the Android app at the rafting center to scan the signed names lists.
  2. Review and correct names inside the app.
  3. Send the names list by email or print directly if the printer is on the same Wi-Fi network as the Android phone or tablet.
  4. If the names list was sent by email: Open the email, copy the names list to the "Certificate Print Program" on the Windows computer and print.
  5. If certificates were printed directly from the phone: Check the printer to confirm that the certificates were printed.

Troubleshooting

Android says installation is blocked

Android may block APK files that are installed outside the Play Store. Open Android settings when prompted and allow installation from the browser or file manager used to download the APK.

Android asks for permissions

Allow camera access so the app can scan name lists. Allow file or sharing permissions when needed to send the email.

Windows shows a security warning

Windows may show a warning for new or unsigned programs. Continue only if the program was downloaded from rct.webmagick.eu.

The printer does not appear

Check that the printer is connected, powered on, installed in Windows, and visible under Windows printer settings.