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Stirling PDF alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Stirling PDF: self-hosting needs Docker or server know-how, and SSO and admin features sit in paid plans. We ranked 5 alternatives by how directly each one replaces Stirling PDF, then by reviews, real visits and how recently each app's facts were checked against its own website. PDF24 Tools currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Smallpdf logoSmallpdfFree plan + paidNoWeb, Windows, iOS +14 of 459.6
2iLovePDF logoiLovePDFFree plan + paidNoWeb, Windows, macOS +24 of 457.2
3Adobe Acrobat logoAdobe AcrobatPaidNoWeb, Windows, macOS +24 of 455.3
  1. Smallpdf logo

    1. SmallpdfTop pick

    Best for: People who need quick PDF conversions and fixes from any browser

    Free plan + paidWeb, Windows, iOS, Android

    59.6

    score / 100

    Why switch from Stirling PDF

    Hosted, polished toolkit if self-hosting is more effort than it is worth.

    Pros

    • Very simple drag-and-drop tools
    • Works on any computer with a browser
    • Security certifications and stated file deletion

    Cons

    • Free use is capped daily
    • Files must be uploaded for most tasks
    • Deeper editing is limited compared with desktop editors
    Visit Smallpdf Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Smallpdf a good Stirling PDF alternative?

    Verified facts

    4 of 4 verified
    Free trial
    7 days
    Checked Oct 25, 2026smallpdf.com(opens source in a new tab)
    Free plan
    Yes, after the trial
    Checked Oct 25, 2026smallpdf.com(opens source in a new tab)
    Founded
    2013, Switzerland
    Checked Oct 25, 2026smallpdf.com(opens source in a new tab)
    Compliance
    ISO/IEC 27001, GDPR
    Checked Oct 25, 2026smallpdf.com(opens source in a new tab)
  2. iLovePDF logo

    2. iLovePDF

    Best for: Occasional users who want a quick free tool for common PDF tasks

    Free plan + paidWeb, Windows, macOS, iOS, Android

    57.2

    score / 100

    Why switch from Stirling PDF

    Hosted tools with mobile and desktop apps and a generous free tier.

    Pros

    • Free tier covers most everyday tasks
    • Each tool is simple and fast to use
    • Desktop and mobile apps as well as the website

    Cons

    • File size and task limits on the free plan
    • Upload-based processing for most tools
    • Not a full editor for changing body text
    Visit iLovePDF Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is iLovePDF a good Stirling PDF alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Core tools, limited use
    Checked Oct 25, 2026ilovepdf.com(opens source in a new tab)
    Desktop apps
    Mac and Windows
    Checked Oct 25, 2026ilovepdf.com(opens source in a new tab)
    Mobile apps
    iOS and Android
    Checked Oct 25, 2026ilovepdf.com(opens source in a new tab)
    E-signature
    Sign or request signatures
    Checked Oct 25, 2026ilovepdf.com(opens source in a new tab)
  3. Adobe Acrobat logo

    3. Adobe Acrobat

    Best for: Professionals who exchange complex PDFs daily and need the most compatible, complete editor

    PaidWeb, Windows, macOS, iOS, Android

    55.3

    score / 100

    Why switch from Stirling PDF

    A full commercial editor for complex documents and accessibility work.

    Pros

    • The most complete PDF feature set, including redaction, OCR and preflight
    • Best compatibility with forms and files made elsewhere
    • Signing, conversion and editing in one subscription

    Cons

    • Subscription only, and among the most expensive options
    • Interface is crowded for occasional users
    • AI features are a separate paid add-on
    Visit Adobe Acrobat Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Adobe Acrobat a good Stirling PDF alternative?

    Verified facts

    4 of 4 verified
    Free trial
    7 days
    Checked Oct 25, 2026adobe.com(opens source in a new tab)
    Tools in Pro
    70+ PDF tools
    Checked Oct 25, 2026adobe.com(opens source in a new tab)
    Platforms
    Desktop, web and mobile
    Checked Oct 25, 2026adobe.com(opens source in a new tab)
    Batch automation
    Action Wizard (Pro)
    Checked Oct 25, 2026adobe.com(opens source in a new tab)

The best Stirling PDF alternative for…

The highest-ranked app in this list for each need.

PDF24 Tools logo

Best Stirling PDF alternative for most people

PDF24 Tools

Free tools with a desktop app for Windows if you do not want to run a server.

PDFsam logo

Best Stirling PDF alternative for a free option

PDFsam

Open-source desktop app for splitting and merging with no server needed.

Smallpdf logo

Best Stirling PDF alternative for a free plan you can upgrade

Smallpdf

Hosted, polished toolkit if self-hosting is more effort than it is worth.

PDFsam logo

Best Stirling PDF alternative for open source

PDFsam

Open-source desktop app for splitting and merging with no server needed.

iLovePDF logo

Best Stirling PDF alternative for Mac

iLovePDF

Hosted tools with mobile and desktop apps and a generous free tier.

Adobe Acrobat logo

Best Stirling PDF alternative for Windows

Adobe Acrobat

A full commercial editor for complex documents and accessibility work.

PDFsam logo

Best Stirling PDF alternative for Linux

PDFsam

Open-source desktop app for splitting and merging with no server needed.

Smallpdf logo

Best Stirling PDF alternative for iPhone and Android

Smallpdf

Hosted, polished toolkit if self-hosting is more effort than it is worth.

PDF24 Tools logo

Best Stirling PDF alternative for working in the browser

PDF24 Tools

Free tools with a desktop app for Windows if you do not want to run a server.

Stirling PDF alternatives: common questions

What is the best alternative to Stirling PDF?

PDF24 Tools ranks first right now. Free tools with a desktop app for Windows if you do not want to run a server. PDFsam and Smallpdf follow it in our ranking.

Is there a free alternative to Stirling PDF?

Yes. PDF24 Tools (free), PDFsam (open source), Smallpdf (free plan + paid) and iLovePDF (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Stirling PDF?

Yes: PDFsam.

Which Stirling PDF alternatives work on Linux?

PDFsam runs on Linux.

Why do people switch from Stirling PDF?

The complaints we hear most: self-hosting needs Docker or server know-how; SSO and admin features sit in paid plans; interface is more functional than polished.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Stirling PDF, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.