Local PDF Tools – Private & Offline
PDFNinja processes documents entirely in your browser – merge, compress and split without sending files to any server. Privacy, speed and reliability for sensitive PDFs.
- Merge, compress & split 100% locally
- No uploads or watermarks – privacy first
- Works offline after first load (PWA)
- Open‑source stack transparency
- Fast WebAssembly PDF engine
- 15 languages – localized slugs & schema
100% on-device processing. No file uploads • No tracking pixels • Offline capable.
Why Local & Offline PDF Tools Win
Most "free" PDF sites transmit your documents to the cloud – introducing privacy, compliance (GDPR / HIPAA) and retention risk while wasting time on upload & queue delays. PDFNinja executes every operation 100% on-device via WebAssembly: no server, no snooping, no watermark. After the first load it works offline, so you can confidently handle legal, finance, medical or HR PDFs with near‑instant feedback.
100% local processing in your browser: no uploads, no tracking, works offline after the first load.
- Keeps sensitive documents on your device
- GDPR/HIPAA friendly & no watermarks
Popular Local PDF Tools
Merge PDF (No Upload)
Combine multiple PDFs locally – reorder & export instantly.
Compress PDF (Offline)
Reduce file size on‑device – balanced, fast & private.
Split PDF (Private)
Extract page ranges or every page without leaving your browser.
FAQ – Privacy, Speed & Capability
1Do you store, upload or log my PDFs?
No. Processing is 100% local in your browser – nothing leaves the device, no transient uploads, no tracking pixels.
2Will you add OCR, page reordering or deletion?
Yes. Upcoming roadmap: visual page reordering, selective page delete & optional offline OCR packs (lazy‑loaded WebAssembly).
3How can I verify the privacy claim?
Open DevTools → Network while merging, compressing or splitting: only static asset requests appear – no file upload of your PDFs.