The tiny PDF utility: merge, split and compress — free, offline, no accounts.
Free · Open source (MIT) · 100% local — nothing ever leaves your PC · No accounts, no limits, no watermarks
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- Merge several PDFs into one
- Split a PDF into pages or ranges
- Compress heavy PDFs before sending them
- Minimal, fast, 100% local
Direct download, no sign-up. If Windows shows "Windows protected your PC" (normal for new unsigned apps): click More info → Run anyway. Installs without administrator rights.
⭐ If CajaPDF is useful to you, a star on GitHub is the best way to support it — it costs nothing and helps a lot.
Every tool in this family follows the same rules: free, open source, and nothing leaves your PC.
| Tool | What it does |
|---|---|
| CapturaPro | Screenshots, GIFs and screen recordings for Windows — annotated, watermark-free, 100% local. |
| TranscriptorIA | Audio & video to text and .srt subtitles with local Whisper AI — free, private, unlimited. |
| PDFLocal | The full PDF toolbox for Windows: merge, split, compress, sign, OCR and chat with your documents — no uploads. |
| CapturaStudio | An OBS-style recording & streaming studio with local AI superpowers — record, stream, auto-edit. |
| GuiaClick | Record your clicks, get a step-by-step guide — annotated screenshots, blur, PDF/HTML export. Like Scribe, but local. |
| ActaLocal | Meetings → minutes: local Whisper transcription plus AI summary, decisions and action items. |
| AutoEscritorio | Trigger→action automation for Windows: watch folders, hotkeys, USB, clipboard — simple and local. |
| BalanceLocal | Your work Wrapped: where your time actually goes, as shareable cards, a PDF report and a mini-video. |
| CajaNegra | A dashcam for your PC: the last minutes of your screen, one hotkey away from a perfect incident report. |
| FichajeLocal | A local time-clock kiosk for small business: PIN check-in, tamper-evident records, accountant-ready reports. |
| ITVLocal | An MOT-style inspection for your PC: 1–3 minutes, a 0–10 score and a PDF certificate. Inspects, never modifies. |
| SonarArchivo | Find files by what's INSIDE them: local full-text search over your messy folders and old drives. |
Also: CRBRO — persistent neural memory for AI agents (MCP server).
MIT — see also THIRD-PARTY-NOTICES.md where present.