PDF for every level.
Edit, convert, sign and organise PDFs — locally and offline.
Three editions
Lite, Max, and Ultra X26.
Lite is free inside Culltron OS. Max is the professional paid edition. Ultra X26 is the flagship — a strict superset of Max with Aria AI.
Lite · in OS
PDF Lite
✓Read, search & annotate
✓Merge, split & reorder
✓Fill simple forms
✓Free in Culltron OS
Max · paid
PDF Max
✓Everything in Lite
✓Edit text & images in-place
✓Convert to/from Office formats
✓OCR scanned documents
✓Sign & redact
Flagship · AI
Ultra X26 · flagship
PDF Ultra X26
✓Everything in Max
✓Aria extract & summarise
✓Batch convert & OCR queues
✓Smart form data capture
✓Local / BYOK / Cloud AI
PDF Lite is bundled with Culltron OS and is not sold separately. Aria AI is an Ultra X26 feature.
What you get
Built to do real work.
Edit anything
Change text, images and layout directly in the PDF — no conversion round-trip.
Convert cleanly
To and from Office formats, images and more, with layout preserved.
OCR built in
Turn scans into searchable, selectable text — batch it in Ultra.
Sign & redact
Add signatures and permanently remove sensitive content.
Aria document IQ
In Ultra, ask Aria to extract, summarise and answer across long PDFs.
Local & offline
Your documents never leave your machine. Signed offline lease.
Editions
PDF Max, and PDF Ultra X26.
Max is strong paid software. Ultra X26 adds Aria AI and advanced workflows — the flagship edition, not a bundle.
CapabilityMaxUltra X26
Read, annotate, merge & split
✓
✓
Edit text & images
✓
✓
Convert & OCR
✓
✓
Sign & redact
✓
✓
Aria extract & summarise
—
✓
Batch OCR & convert queues
—
✓
Local / BYOK / Cloud AI
—
✓
Get PDF
Get launch access. Choose the edition that fits.
Culltron OS includes its verified core local apps. This Max product is available only after its signed release artifact is approved; Ultra X26 adds entitled Aria workflows.
© 2026 Culltron. Engineered in South Africa. Local-first by design.
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