| Annotation | A drawable markup element layered over a capture — pen, shape, text, step, blur, etc. |
| Callout | Text rendered inside a speech-bubble shape; same font options as the Text tool. |
| Capture | A still image grabbed from the screen — region, fullscreen, or scrolling. |
| Confidence (OCR) | Tesseract's 0-100 score for the extracted text on a given capture. |
| Dock Pill | The compact 148x60 floating toolbar shown when UI.DockToBottom is enabled. |
| EULA | End-User License Agreement; must be accepted before first use (see 11.1). |
| Fullscreen Capture | A capture of every monitor combined, taken without a region overlay. |
| Hardware Encoding | Screen-recording path that offloads H.264/H.265 to GPU (NVENC / QuickSync / AMF). |
| History | Persistent list of recent captures stored in %APPDATA%\Tex\capture_history.json. |
| Hotkey | Global keyboard shortcut registered with Windows via NHotkey (see Appendix B). |
| Inline Paste | Email send mode that copies the image to the clipboard and opens a new mail so the user can paste into the body. |
| Machine ID | Device fingerprint used for license seat binding and offline activation. |
| OCR | Optical Character Recognition; text extraction powered by Tesseract 5.5.1. |
| Preprocessing | Contrast / threshold / denoise applied to a region before OCR to improve accuracy. |
| Pixelate | Mosaic-block redaction tool; block size controlled by Annotation.PixelateSize. |
| Redaction | Any destructive masking — Blur or Pixelate — applied to hide sensitive content. |
| Region Capture | A capture of a user-drawn rectangle via CaptureOverlayWindow. |
| Scrolling Capture | A multi-frame capture stitched into one tall image for long pages or documents. |
| Step Indicator | Numbered / alphabetic / roman label placed by the Step annotation tool. |
| System Tray | Windows notification area; host for the Tex tray icon and context menu. |
| Tesseract | The OCR engine embedded in Tex (TesseractOCR 5.5.1). |
| WebP | Modern image format supported for save with separate quality and lossless settings. |
| ZXing | The barcode / QR reader library (ZXing.Net) used for scanning codes inside captures. |
