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Illustrative sample workspace · example data only · not Culltron pricing or customer data · no live device or release state

Master Services Agreement

3 · Scope & deliverables

The Provider shall deliver the software licenses and services described in Schedule A. Payment terms are net 30 from invoice date, with renewal governed by clause 7.

Deliverables include per-app licenses (Max and Ultra X27), offline leases, and support as set out in clause 5. The parties agree that AI usage is user-controlled and not resold.

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Signature field
Click to sign · server-signed lease

This agreement is executed locally and stored on the Client's device. No content leaves the machine during signing.

PDF Max in depth

PDF Max

A local PDF workstation. Nothing is uploaded unless a separate connected workflow says so explicitly.

  • A viewer with page thumbnails, zoom, rotate, jump, keyboard navigation and text search.
  • Organise, rotate, delete, crop and extract exact page ranges. Merge files, turn images into a PDF, export pages to PNG and extract text.
  • Edit metadata and add watermarks and page numbers.
  • Inspect and fill AcroForm fields, author fields after review, and optionally flatten. Add bookmarks and page labels.
  • Local preflight checks for structure, accessibility and print, plus bounded OCR to create searchable copies.
  • AES-256 password encryption and authorised decryption, available when qpdf is installed. Each change writes a separate copy and a receipt.

Ultra X27: adds stamps, presets for watermarks and page numbers, appearance-only signature marks, metadata cleaning, three lossless optimisation profiles, batch merge/split/watermark/numbering, and document binders.

Limits: Production edits refuse dynamic XFA forms and PDFs that already carry signatures rather than silently invalidating them. Signature marks are visual and are not digital signatures.

How it works

  1. It is a separate desktop product on Culltron's shared, hardened platform, with its own full editor and local workspace.
  2. A local, authenticated runtime serves the editor. Your files stay on your machine.
  3. A signed licence lease unlocks the paid edition, and Ultra X27 features are enforced by the server, not just hidden.
  4. Changes write new copies, usually with checksum receipts, so originals are not overwritten.

Frequently asked questions

Does PDF Max work offline?

Yes. The core editor runs locally through Culltron's runtime on your own machine and keeps files in a local folder.

What does Ultra X27 add?

Ultra X27 adds stamps, presets for watermarks and page numbers, appearance-only signature marks, metadata cleaning, three lossless optimisation profiles, batch merge/split/watermark/numbering, and document binders.

What are the limits of PDF Max?

Production edits refuse dynamic XFA forms and PDFs that already carry signatures rather than silently invalidating them. Signature marks are visual and are not digital signatures.

Can I download PDF Max today?

Not yet publicly. Builds are tested, but a public download appears only after signing, checksum verification and release approval.

Release status: built and tested in the repository. A public download appears only after signing, checksum verification and release approval; see Downloads. Source of these facts: the product's engineering README.