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NINJA / PDFREV 2026.06
v1.0 — Engineered for the browser

PDF tools that feel engineered.

Merge, split, compress and convert PDFs entirely inside your browser. No uploads. No waiting. Your files never leave your device.

FIG. 01 — INPUT
ZONE A · LOCALMAX 500 MB · PDF / IMG
PDF

Drop your PDF to begin

or browse files

100% local·No upload·WASM accelerated
03Principles§

Built on three uncompromising ideas.

P / 01§1

Privacy first

Every operation runs locally inside your browser. Your documents are never uploaded.

P / 02§2

Lightning fast

No round trips, no queues. Files open and process the moment you drop them.

P / 03§3

Beautiful experience

Designed with the same precision and restraint you expect from your favorite tools.

04Features§

Quietly powerful where it counts.

Merge · F-01

Merge PDFs effortlessly.

Drop several files, drag them into the order you want, and export a single, perfectly stitched document.

Learn more
merged-report.pdf100%
invoice.pdf
receipt.pdf
→
merged.pdf
LOCAL · WASMREADY
Split · F-02

Split large documents.

Define ranges with keyboard precision. Preview each output before saving — no surprises.

Learn more
chapter-03.pdf100%
source.pdf
24 pages
1–8
9–16
17–24
LOCAL · WASMREADY
Compress · F-03

Compress without losing quality.

Smart re-encoding shrinks file size by up to 80% while preserving sharp text and clean vectors.

Learn more
annual-report.pdf100%
120.4 MB · original
−80%
24.1 MB · optimized
LOCAL · WASMREADY
Convert · F-04

Convert images instantly.

Turn folders of JPG, PNG or HEIC into a single PDF — or export every PDF page as a crisp image.

Learn more
photos-2026.pdf100%
JPG
PNG
HEIC
JPG
PNG
JPG
→
6 pages · PDF
LOCAL · WASMREADY
05Engine§

Engineered for the browser, end to end.

E-01
Local Processing

All work happens on-device.

E-02
Zero Uploads

Files never leave the tab.

E-03
WebAssembly

Near-native execution speed.

E-04
Web Workers

UI stays responsive under load.

E-05
Offline Ready

Works without a connection.

06FAQ§

Questions, answered.

Still curious? Reach out — we read every message.

REF · Q-06

END

Built for people who care about details.

The PDF toolkit you'll keep open in a pinned tab.

Open the toolkit