Updated August 2026
    Actively maintained
    Real momentum
    90k

    Stirling-PDF: Maintenance, Licence and Alternatives

    Local hosted web application that allows you to perform various operations on PDF files, such as merging, splitting, file conversions and OCR.

    TL;DR • Stirling-PDF • as of August 2026

    Stirling-PDF is an open-source document management project, with 90k GitHub stars and a health score of 100/100. It committed 1627 times in the last twelve months across 12 of those months, and its status is actively maintained. Licence: Apache-2.0. It has real momentum, so treat it as a live competitor rather than a stale repository.

    90k
    GitHub stars
    100/100
    Health score
    1627
    Commits (12 mo)
    12/12
    Active months

    Maintenance health

    Status Actively maintained — Committed within the last 45 days.
    Last commit 2026-08-14
    Days since last commit 3
    Commits, last 3 months 631
    Commits, last 12 months 1627
    Months with activity 12 of 12
    Last release 2026-08-06
    Archived No
    Licence Apache-2.0
    Category Document Management

    Health score combines commit recency, twelve-month commit volume, months with activity, release recency and archive state. Metadata refreshed August 2026.

    What the licence lets you do

    Apache-2.0

    Permissive (MIT, Apache, BSD): you can fork it, close the source and sell it. Lowest legal friction for a commercial product.

    This matters most when you plan to sell a hosted version. A permissive licence means anyone — including a competitor with more capital — can do the same, so your defensibility has to come from distribution, support or data, not from the code.

    What Stirling-PDF means for your idea

    Stirling-PDF is shipping code consistently, so a buyer comparing your product will find a maintained free option. Price and position against the total cost of self-hosting it, not against the paid incumbent's list price.

    Assume every prospect can find a free version in five minutes. Your wedge has to be something open source structurally cannot deliver: compliance, support SLAs, managed hosting at scale, or a workflow the maintainers refuse to build.

    Stirling-PDF: common questions

    Is Stirling-PDF still maintained in 2026?

    Actively maintained. Stirling-PDF recorded 1627 commits over the last twelve months, with activity in 12 of those months and 631 commits in the last quarter. Last commit: 2026-08-14. Last release: 2026-08-06. Committed within the last 45 days.

    Can I use Stirling-PDF commercially?

    Stirling-PDF is published under Apache-2.0. Permissive (MIT, Apache, BSD): you can fork it, close the source and sell it. Lowest legal friction for a commercial product.

    How crowded is the Document Management category?

    41 open-source implementations, 22 of them actively maintained, led by Stirling-PDF at 90k stars. Saturation score 72/100 — Crowded. Free, maintained alternatives already dominate this category.

    Stirling-PDF alternatives in Document Management

    Paperless-ngx

    Document Management

    44k

    Scan, index, and archive all of your paper documents with an improved interface (fork of Paperless).

    Actively maintained
    Real momentum
    GPL-3.0

    Calibre

    Document Management

    26k

    E-book library manager that can view, convert, and catalog e-books in most of the major e-book formats and provides a built-in Web server for remote clients.

    Actively maintained
    Real momentum
    GPL-3.0

    BentoPDF

    Document Management

    15k

    Powerful, privacy-first, client-side PDF toolkit that allows you to manipulate, edit, merge, and process PDF files directly in your browser.

    Actively maintained
    Real momentum
    AGPL-3.0

    Documenso

    Alternative to DocuSign, Document signing

    14k

    Digital document signing platform (alternative to DocuSign).

    Actively maintained
    Real momentum
    AGPL-3.0

    Competing with free? Check the market first.

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