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RWTS PDFwriter vs Preview: catalog facts
RWTS PDFwriter	Preview
Free Free to download from GitHub.	Free Included with macOS at no extra cost.
macOS	macOS
Works from any app that can print Universal binary for Intel and Apple Silicon	Already installed on every Mac Handles both PDFs and images
macOS only Infrequent updates	macOS only No advanced editing of PDF text or OCR tools like dedicated editors
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.