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Stirling PDF vs PDF24 Creator: catalog facts
Stirling PDF	PDF24 Creator
Freemium Free plan is $0/month with no card required (60+ tools, web/desktop/self-hosted, 500…	Free Freeware for private and commercial use with no restrictions, financed by advertising on…
Windows, macOS, Linux, Web, Self-hosted	Windows
55+ PDF tools covering signing, converting, merging, editing, OCR and redaction, chained in a stateful workspace with… Runs on Docker, bare metal, Kubernetes or as native desktop apps for Windows, macOS and Linux	Virtual PDF printer converts any printable file to PDF, with multiple printers, profiles and automatic saving Merge, split, compress, OCR, overlay, protect, convert and sign PDFs, plus a lightweight built-in PDF reader
Open-core: SSO, external database, Google Drive integration, SAML and audit logs are gated behind paid Team or… Manual server setup needs Java 25+ plus LibreOffice and Tesseract for conversions and OCR	Windows 10 and 11 only; the FAQ states Linux and macOS are not supported and other systems must… Proprietary freeware with no published source code or license text
Self-hosted, Downloadable app, Web application, Hosted service	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 20, 2026

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