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The best free open source tools: Privacy & paperwork (2026)

One tool tested by Loucash. What it replaces, what it saves, and the prompt that installs it.

  1. Stirling PDF

    Score 9/10

    The complete PDF toolbox, at your place: merge, split, compress, convert, sign, OCR, watermark, 60+ tools in one web page. No file ever leaves for a third-party server.

    Replaces:iLovePDF PremiumSaves €9/month
    See the card →See the tool ↗

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